WP8 and Windows 8.1 Universal App fixes

This pull request fixes the following:

1. Fixes the wp8 shader compiler by adding missing files to project
2. Fixes the AllocatorTest by deleting the objects created in the first test pass before starting the second test pass.
3. Fixed MUTEX_INIT for WINRT and WP8
4. Added base/allocator to WP8 and Universal App projects
5. Updated libcoco2d dll name from 3.3 to 3.4
6. Removed unused files.