support for more video/audio files
Merge remote-tracking branch 'rookie/master'
code refactoring
support for another mp4 video file header
updated host file
read just 64 bytes (or less) to check the file header
version 1.6.6.20130602
In Host File Editor, the URL Pattern must be a Regular Expression.

The Host is validated only if URL Pattern can be turned into RegExp without 'trouble'.
Some code cleanup...

Signed-off-by: Rookie <Thierry@evo-n600.(none)>