Remove support for Visual Studio 2015

As Visual Studio 2017 is available, it doesn't makes sense to include support for 2015. VS 2017 has much better support for C++14 then VS  2015.

CharLS_VS2017.sln → CharLS.sln

@@ -3,31 +3,31 @@ Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
 VisualStudioVersion = 15.0.26730.16
 MinimumVisualStudioVersion = 10.0.40219.1
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSTest_VS2017", "test\CharLSTest_VS2017.vcxproj", "{7185AD7F-57BA-42C7-A715-239CEA8ADC31}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSTest", "test\CharLSTest.vcxproj", "{7185AD7F-57BA-42C7-A715-239CEA8ADC31}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Samples", "Samples", "{BE733144-010D-4F7F-A619-0B73D8461D60}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Native", "Native", "{1C1CF63C-A53A-449F-90D3-63321015FD65}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".NET", ".NET", "{A81B52AC-655D-4D1F-B21B-9BC4529AB447}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLS_VS2017", "src\CharLS_VS2017.vcxproj", "{1E31F9F1-F175-4082-B3E2-B1F0ECA3F44C}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLS", "src\CharLS.vcxproj", "{1E31F9F1-F175-4082-B3E2-B1F0ECA3F44C}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{5F4C6204-36F8-4D63-BF33-ECFCB5D1D114}"
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
 	EndProjectSection
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CharLSNet_VS2017", "net\CharLSNet_VS2017.csproj", "{6F9955C1-A285-4DE0-B3E6-F69EB08BBD7B}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CharLSNet", "net\CharLSNet.csproj", "{6F9955C1-A285-4DE0-B3E6-F69EB08BBD7B}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CharLSNetTest_VS2017", "nettest\CharLSNetTest_VS2017.csproj", "{002B897F-9D96-4A99-853F-53806C39559D}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CharLSNetTest", "nettest\CharLSNetTest.csproj", "{002B897F-9D96-4A99-853F-53806C39559D}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Convert_VS2017", "samples\convert.c\Convert_VS2017.vcxproj", "{F42C0547-FEB3-40F4-9379-0FF87B44FA0F}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Convert", "samples\convert.c\Convert.vcxproj", "{F42C0547-FEB3-40F4-9379-0FF87B44FA0F}"
 	ProjectSection(ProjectDependencies) = postProject
 		{1E31F9F1-F175-4082-B3E2-B1F0ECA3F44C} = {1E31F9F1-F175-4082-B3E2-B1F0ECA3F44C}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSUnitTest_VS2017", "unittest\CharLSUnitTest_VS2017.vcxproj", "{4A912445-1E83-41FA-8B80-C0A9BD4E9289}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "CharLSUnitTest", "unittest\CharLSUnitTest.vcxproj", "{4A912445-1E83-41FA-8B80-C0A9BD4E9289}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CharLSNet_Standard14", "net14\CharLSNet_Standard14.csproj", "{368BA976-8A8A-425C-A082-52FAAD60DEEA}"
 EndProject

Directory.Build.props

@@ -2,15 +2,15 @@
 <Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <!-- Build to a folder outside the source folders, making it easier to clean. -->
-    <OutDir>$(SolutionDir)bin_2017\$(Configuration)\$(Platform)\</OutDir>
-    <OutDir Condition="'$(Platform)'=='Win32'">$(SolutionDir)bin_2017\$(Configuration)\x86\</OutDir>
+    <OutDir>$(SolutionDir)bin\$(Configuration)\$(Platform)\</OutDir>
+    <OutDir Condition="'$(Platform)'=='Win32'">$(SolutionDir)bin\$(Configuration)\x86\</OutDir>
 
     <!-- C# Projects require the legagy OutputPath variabl. -->
     <OutputPath>$(OutDir)</OutputPath>
 
     <!-- C++ temp files can be redirected. -->
     <!-- C# project files can also be redirected, but this causes rebuilds inside VS2015. -->
-    <IntDir>$(SolutionDir)intermediate_2017\$(MSBuildProjectName)\$(Platform)\$(Configuration)\</IntDir>
+    <IntDir>$(SolutionDir)intermediate\$(MSBuildProjectName)\$(Platform)\$(Configuration)\</IntDir>
 
     <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
     <PlatformToolset>v141</PlatformToolset>

README.md

@@ -1,36 +1,37 @@
 [![Build status](https://ci.appveyor.com/api/projects/status/yq0naf3v2m8nfa8r/branch/master?svg=true)](https://ci.appveyor.com/project/vbaderks/charls/branch/master)
 [![Build Status](https://travis-ci.org/team-charls/charls.svg?branch=master)](https://travis-ci.org/team-charls/charls)
 
-CharLS
-======
+# CharLS
+
 CharLS is a C++ implementation of the JPEG-LS standard for lossless and near-lossless image compression and decompression.
 JPEG-LS is a low-complexity image compression standard that matches JPEG 2000 compression ratios.
 
-Features
---------
-* C++14 library implementation with a binary C interface for maximum interoperability. Note: C++03 compatible implementation is maintained in the 1.x-master branch.
+## Features
+
+* C++14 library implementation with a binary C interface for maximum interoperability.</br>Note: a C++03 compatible implementation is maintained in the 1.x-master branch.
 * Supports Windows, Linux and Solaris in 32 bit and 64 bit.
 * Includes an adapter assembly for .NET based languages.
 * Excellent compression and decompression performance.
 
-About JPEG-LS
--------------
-JPEG-LS (ISO-14495-1/ITU-T.87) is an image compression standard derived from the Hewlett Packard LOCO algorithm. JPEG-LS has low complexity (meaning fast compression) and high compression ratios, similar to the JPEG 2000 lossless ratios. JPEG-LS is more similar to the old Lossless JPEG than to JPEG 2000, but interestingly the two different techniques result in vastly different performance characteristics. 
+## About JPEG-LS
+
+JPEG-LS (ISO/IEC 14495-1:1999 / ITU-T.87) is an image compression standard derived from the Hewlett Packard LOCO algorithm. JPEG-LS has low complexity (meaning fast compression) and high compression ratios, similar to the JPEG 2000 lossless ratios. JPEG-LS is more similar to the old Lossless JPEG than to JPEG 2000, but interestingly the two different techniques result in vastly different performance characteristics.
 Wikipedia on lossless JPEG and JPEG-LS: <http://en.wikipedia.org/wiki/Lossless_JPEG>
+Tip: the ITU makes their version of the JPEG-LS standard (ITU-T.87) freely available for download, the text is identical with the ISO version.
+
+## About this software
 
-About this software
--------------------
 This project's goal is to provide a full implementation of JPEG-LS. This library is written from scratch in portable C++. The master branch uses modern C++ v11. The 1.x branch is maintained in C++ v03. All mainstream JPEG-LS features are implemented by this library.
-According to preliminary test results published on http://imagecompression.info/gralic, CharLS is about *twice as fast* as the original HP code, and beats both JPEG-XR and JPEG 2000 by a factor 3. 
+According to preliminary test results published on http://imagecompression.info/gralic, CharLS is about *twice as fast* as the original HP code, and beats both JPEG-XR and JPEG 2000 by a factor 3.
+
+## Supported platforms
 
-Supported platforms
--------------------
 The code is regularly compiled/tested on Windows and 64 bit Linux. Additionally, the code has been successfully tested on Linux Intel/AMD 32/64 bit (slackware, debian, gentoo), Solaris SPARC systems, Intel based Macs and Windows CE (ARM CPU, emulated), where the less common compilers may require minor code edits. It leverages C++ language features (templates, traits) to create optimized code, which generally perform best with recent compilers. If you compile with GCC, 64 bit code performs substantially better.
 
-Users & Acknowledgements
-------------------------
+## Users & Acknowledgements
+
 CharLS is being used by [GDCM DICOM toolkit](http://sourceforge.net/projects/gdcm/), thanks for [Mathieu Malaterre](http://sourceforge.net/users/malat) for getting CharLS started on Linux. [Kato Kanryu](http://knivez.homelinux.org/) wrote an initial version of the color transfroms and the DIB output format code, for an [irfanview](http://www.irfanview.com) plugin using CharLS. Thanks to Uli Schlachter, CharLS now finally runs correctly on big-endian architectures like Sun SPARC. 
 
-Legal
------
+## Legal
+
 The code in this project is available through a BSD style license, allowing use of the code in commercial closed source applications if you wish. **All** the code in this project is written from scratch, and not based on other JPEG-LS implementations. Be aware that Hewlett Packard claims to own patents that apply to JPEG-LS implementations, but they license it for free for conformant JPEG-LS implementations. Read more at <http://www.hpl.hp.com/loco/> before you use this if you use this code for commercial purposes.

appveyor.yml

@@ -9,7 +9,7 @@ platform:
 - x64
 before_build:
 - set PATH=C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\15.0\Bin;%PATH%
-- nuget restore CharLS_VS2017.sln
+- nuget restore CharLS.sln
 build:
-  project: CharLS_VS2017.sln
+  project: CharLS.sln
   verbosity: minimal