Move ebur128 code into 3rdpart. It should've been here all along, plus this will make things easier when porting to system's libebur128...


git-svn-id: http://cantata.googlecode.com/svn/trunk@4179 b1e49159-3266-923f-9c3e-04f16369770a
Apply Fedora patches.


git-svn-id: http://cantata.googlecode.com/svn/trunk@4180 b1e49159-3266-923f-9c3e-04f16369770a
Use system's libebur128 if found
BUG: 415


git-svn-id: http://cantata.googlecode.com/svn/trunk@4181 b1e49159-3266-923f-9c3e-04f16369770a