Plain .gitignore file for Windows.
Visual Studio project created
Committing so I can push & continue work at home.
Added header-creation scripts for Windows
Project now compiles on Windows 7 using VC2012
Windows branch now compiles successfully on OS X, iOS, and Android.
Functions are now exported from Windows DLLs.
Merge branch 'feature/Windows' into develop

* feature/Windows:
  Functions are now exported from Windows DLLs.
  Windows branch now compiles successfully on OS X, iOS, and Android.
  Project now compiles on Windows 7 using VC2012
  Added header-creation scripts for Windows
  Committing so I can push & continue work at home.
  Visual Studio project created
  Plain .gitignore file for Windows.

Conflicts:
	ePub3/ePub/nav_table.h
Reinstated OS X project Prefix Header value.