Added some comment about UTF-16 encoding to String::data().
Small fix of a comment
Suppressed the warning "Policy CMP0022 is not set" on CMake 2.8.12.
Add ALBUMARTIST property mapping for MP4

https://code.google.com/p/mp4v2/wiki/iTunesMetadata
Merge pull request #377 from amigadave/master

Add ALBUMARTIST property mapping for MP4
Merge pull request #372 from TsudaKageyu/cmake-warning

Suppressed the warning "Policy CMP0022 is not set" on CMake 2.8.12.
Add ALBUMARTIST property mapping for WMA
Merge pull request #356 from TsudaKageyu/string-comment

Added some comment about UTF-16 encoding to String::data().