Adding initial version of MPE2 package.
Adding autotools and ImageMagick and patch for mpe2
Fixing errors in depends_on and updating version for ImageMagick
Merge pull request #5 from scrobey/features/mpe2

Adding autotools and ImageMagick and patch for mpe2
Merge branch 'features/mpe2' into develop
Fix bug with extension() for sourceforge URLs.