FIXED: spine-csharp.csproj - Added missing files to project.
Merge pull request #219 from coeing/fix-project-file

FIXED: spine-csharp.csproj - Added missing files to project.
ADDED: spine-csharp - Added project to build DLLs for Windows Store.
FIXED: spine-unity - Accessing data via properties, not via internal fields. Otherwise it's not possible to use a DLL for the Spine core.
FIXED: spine-unity - Reverted meta file of SkeletonAnimation.cs to avoid loosing references in prefabs.
Merge branch 'fix-SkeletonAnimation-meta'
Merge branch 'metro-runtime'