Renamed GetCurrentSong as per todo.

Conflicts:
	src/buffer/directory.cpp
Added more data to info window.
Reformat all dos formatted files.
Fix playlist index bug.
Merge pull request #20 from connermcd/metadata

Added more metadata to info window.
Removed tabs and trailing whitespace.
Start of unit test support
Changed unit test code to output to a window
Start of settings tests
Merge pull request #21 from connermcd/remove-tabs

Removed tabs and trailing whitespace.
Support for named tests
Merge branch 'master' into test
Added start of algorithms tests so that two examples are working
Added license