Update to Inno Setup Complier file. Now using v6.x of Inno.

Added a global define into the file for the version number, much easier to update on new version releases now. This define DOES require version 6.x+ of Inno Setup Installer.

Also changed the installer style to use a more modern look. Yes! I know! It goes against everything that Palaeoware stands for :P

inno/SPIERSinstaller.iss

@@ -1,25 +1,27 @@
 ; Script generated by the Inno Setup Script Wizard.
 ; SEE THE DOCUMENTATION FOR DETAILS ON CREATING INNO SETUP SCRIPT FILES!
 
+#define AppVersion "3.1.1"
+
 [Setup]
 ; NOTE: The value of AppId uniquely identifies this application.
 ; Do not use the same AppId value in installers for other applications.
 ; (To generate a new GUID, click Tools | Generate GUID inside the IDE.)
-AppId={{5697A906-8437-4059-B440-37D00BAA0C0F}
+AppId={{D38E919F-9009-4B10-9424-460EF255A6EC}
 AppName=SPIERS
-AppVersion=3.1.0
-;AppVerName=SPIERS 3.1.0
+AppVersion={#AppVersion}
+;AppVerName={#AppVersion}
 AppPublisher=SPIERS Software by Palaeoware
 AppPublisherURL=https://spiers-software.org/
 AppSupportURL=https://spiers-software.org/
 AppUpdatesURL=https://spiers-software.org/
-DefaultDirName={pf}\Palaeoware\SPIERS\v3.1.0
+DefaultDirName={commonpf}\Palaeoware\SPIERS\v{#AppVersion}
 DefaultGroupName=Palaeoware\SPIERS
 ArchitecturesAllowed=x64
 ArchitecturesInstallIn64BitMode=x64
 LicenseFile=.\bin\LICENSE.md
 OutputDir=.\build
-OutputBaseFilename=SPIERSinstaller_v3.1.0_win_x64
+OutputBaseFilename=SPIERSinstaller_v{#AppVersion}_win_x64
 Compression=lzma
 SolidCompression=yes
 ChangesAssociations=yes
@@ -28,6 +30,7 @@ AppContact=palaeoware@gmail.com
 AppComments=SPIERS (Serial Palaeontological Image Editing and Rendering System) is a package of three programs for the reconstruction and analysis of tomographic (serial image) datasets, such as those obtained from serial-grinding of specimens, or from CT scanning. More details are available in the documentation for each program.
 BackColor=$3e3e3e
 BackColor2=$3e3e3e
+WizardStyle=modern
 
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
@@ -37,10 +40,10 @@ Source: ".\bin\*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs createa
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
 [Icons]
-Name: "{group}\SPIERSalign (v3.1.0)"; Filename: "{app}\SPIERSalign64.exe";
-Name: "{group}\SPIERSedit (v3.1.0)"; Filename: "{app}\SPIERSedit64.exe";
-Name: "{group}\SPIERSview (v3.1.0)"; Filename: "{app}\SPIERSview64.exe";
-Name: "{group}\Uninstall SPIERS (v3.1.0)"; Filename: "{uninstallexe}"
+Name: "{group}\SPIERSalign (v{#AppVersion})"; Filename: "{app}\SPIERSalign64.exe";
+Name: "{group}\SPIERSedit (v{#AppVersion})"; Filename: "{app}\SPIERSedit64.exe";
+Name: "{group}\SPIERSview (v{#AppVersion})"; Filename: "{app}\SPIERSview64.exe";
+Name: "{group}\Uninstall SPIERS (v{#AppVersion})"; Filename: "{uninstallexe}"
 
 [Registry]
 Root: HKCR; Subkey: ".spv"; ValueType: string; ValueName: ""; ValueData: "SPIERSviewfile"; Flags: uninsdeletevalue