* Moved HeadlessCheck.h to libtomahawk directory
* Moved all includes to utils/Logger.h from header files to their
respectives source files.
* Removed some unnecessary includes
* Removed some cruft
* Added methods to create playlists in SourceList class
* Install headers for libtomahawk
Add now missing Logger.h include in PeerInfo.cpp
Show audio engine error on console even for headless builds
Clean up CMake for optional liblastfm
Remove copy of Config.h.in from libtomahawk/ and install config.h from build dir