[FIX]Fix Usability bug to display a simple .webm (VP8) video in Tiki uploaded to a file gallery through plugin mediaplayer. It still fails to display with webdocviewer even if seems to be supported in theory.
[FIX]Fix Usability bug to display a simple .webm (VP8) video in Tiki uploaded to a file gallery through plugin mediaplayer. It still fails to display with webdocviewer even if seems to be supported in theory.

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@59241 b456876b-0849-0410-b77d-98878d47e9d5

oregional/tiki,tikiorg/tiki,oregional/tiki,tikiorg/tiki,tikiorg/tiki,oregional/tiki,oregional/tiki,tikiorg/tiki