Refactor the picture buffer in th_movie.cpp.  Avoid memory loss when switching to/from fullscreen mode.


git-svn-id: http://corsix-th.googlecode.com/svn/trunk@2037 c39591fa-788f-11de-a72b-d90af8dea425
Bump api_version for previous commit

git-svn-id: http://corsix-th.googlecode.com/svn/trunk@2038 c39591fa-788f-11de-a72b-d90af8dea425