deprecate Genre functions in Artist
Fix pkg-config dependencies for Qt5
Merge pull request #11 from xhochy/qt5-pkgconfig

Fix pkg-config dependencies for Qt5
fix bug in parsing of Artist URLs, fix test (some URLs are no longer returned by echonest)
add Testcase for URLS fix
Merge pull request #13 from Horrendus/master

Small bugfix, small change in tests, deprecation of old genre API
new Genre API