[guilib] animation length was calculated incorrectly from effects with different delays
[guilib] drop unused AddEffect() function
Merge pull request #4580 from jmarshallnz/anim_length_fix

[guilib] animation length was calculated incorrectly from effects
Update XCode project for MP3Codec/libmad removal
Update MSVC project for MP3Codec/libmad removal
Update depends for MP3Codec/libmad removal
paplayer: Remove MP3Codec
dvdplayer: remove MP3Codec
Remove libmad
Update android packaging Makefile for MP3Codec/libmad removal
Cleanup .gitignore for MP3Codec/libmad removal
(squash into "Remove libmad") Remove libmad traces from DllPath headers
(squash into "Remove libmad") Cleanup configure.in