Core: add class diagram file & image

Tasky/Tasky.Core/About.txt

@@ -1,3 +1,5 @@
-The Tasky.Core library is the reusable portion of the Tasky application. It contains the Business
-Layer (BL), Data Access Layer (DAL), and Data Layer (DL). All of the Tasky.Core code is shared between
-the iOS and Android versions of the application without modification.
+The Tasky.Core library is the reusable portion of the Tasky application.
+
+All of the Tasky.Core code is shared between the iOS and Android versions of the application without modification.
+
+See ClassDiagram.png for a visualization of the classes.

Tasky/Tasky.Core/ClassDiagram.cd

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ClassDiagram MajorVersion="1" MinorVersion="1">
+  <Comment CommentText="Tasky - Core classes&#xD;&#xA;* TaskManager returns Task objects&#xD;&#xA;* TaskManger uses TaskRepository&#xD;&#xA;* TaskRepository uses TaskDatabase&#xD;&#xA;* TaskDatabase inherits from SQLiteConection">
+    <Position X="5.5" Y="3.188" Height="1.052" Width="2.981" />
+  </Comment>
+  <Class Name="Tasky.Core.SQLite.SQLiteConnection" Collapsed="true">
+    <Position X="9.25" Y="0.5" Width="1.5" />
+    <NestedTypes>
+      <Class Name="Tasky.Core.SQLite.SQLiteConnection.TableInfo" Collapsed="true">
+        <TypeIdentifier>
+          <NewMemberFileName>SQLite.cs</NewMemberFileName>
+        </TypeIdentifier>
+      </Class>
+    </NestedTypes>
+    <TypeIdentifier>
+      <HashCode>AAQAEEABACAAiAZLBAAEQAAQCAUAABoAAQAIgACAAAU=</HashCode>
+      <FileName>SQLite.cs</FileName>
+    </TypeIdentifier>
+    <Lollipop Position="0.2" />
+  </Class>
+  <Class Name="Tasky.Core.TaskManager">
+    <Position X="2.25" Y="0.5" Width="1.5" />
+    <Members>
+      <Method Name="TaskManager" Hidden="true" />
+    </Members>
+    <TypeIdentifier>
+      <HashCode>AAAAQAAAAAAAAAAAAAAAAAAAgBAAAAAAgAAAAAAAAAA=</HashCode>
+      <FileName>TaskManager.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="Tasky.Core.Task" BaseTypeListCollapsed="true">
+    <Position X="2.25" Y="2.75" Width="1.5" />
+    <Members>
+      <Method Name="Task" Hidden="true" />
+    </Members>
+    <TypeIdentifier>
+      <HashCode>AAAgAAAAAAAAgAAAAAAAAAQAAAAAAAAAAAAAAAAAAAA=</HashCode>
+      <FileName>Task.cs</FileName>
+    </TypeIdentifier>
+    <Lollipop Position="0.2" Collapsed="true" />
+  </Class>
+  <Class Name="Tasky.Core.TaskDatabase">
+    <Position X="7" Y="0.5" Width="1.5" />
+    <Members>
+      <Field Name="locker" Hidden="true" />
+    </Members>
+    <TypeIdentifier>
+      <HashCode>AABAAAAAAAAAIEAAAQAAAAAAAAAAAgAAAAAAAAAAAAA=</HashCode>
+      <FileName>TaskDatabase.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Class Name="Tasky.Core.TaskRepository">
+    <Position X="4.5" Y="0.5" Width="1.75" />
+    <Members>
+      <Field Name="db" Hidden="true" />
+      <Field Name="dbLocation" Hidden="true" />
+      <Field Name="me" Hidden="true" />
+      <Method Name="TaskRepository" Hidden="true" />
+    </Members>
+    <TypeIdentifier>
+      <HashCode>AAAAQAAAAAAQAAABAAAAAQAAgBAAAAAAgAAgAAAAAAA=</HashCode>
+      <FileName>TaskRepository.cs</FileName>
+    </TypeIdentifier>
+  </Class>
+  <Font Name="Segoe UI" Size="9" />
+</ClassDiagram>

Tasky/Tasky.Core/Tasky.Core.Android.csproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -42,9 +42,7 @@
     <Reference Include="Mono.Android" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Novell\Novell.MonoDroid.CSharp.targets" />
-  <ItemGroup>
-    <Folder Include="Contracts\" />
-  </ItemGroup>
+  <ItemGroup />
   <ItemGroup>
     <Compile Include="Contracts\BusinessEntityBase.cs" />
     <Compile Include="Contracts\IBusinessEntity.cs" />
@@ -56,5 +54,6 @@
   </ItemGroup>
   <ItemGroup>
     <None Include="About.txt" />
+    <None Include="ClassDiagram.cd" />
   </ItemGroup>
 </Project>