Update issue #72 : Add logging of IMediaPosition calls to Analyser filter (but not Analyser File Writer)
Some filters use IMediaPosition *instead* of IMediaSeeking (e.g. audio renderer).
Log rate as floating point in Analysis filter_analyzer.cpp


git-svn-id: http://graph-studio-next.googlecode.com/svn/trunk@108 c2f33eb2-41b2-391d-4cb4-d9d0608729ba