Updated slide pdf generation to use new parser
Updated latex commands
Git now ignores temporary directories while I finish converting songs to new format
Added new latex commands
Added new compiler passes and merge_chords_lyrics now keeps line separation.
Added ability to implement automatic ordering of slides based on order command in song file
Added formatting files
Added public domain song
Fixed number of columns - should be 2
Cleaned up unused commands
Added pass to remove empty latex commands
Added dummy command for scripture
Fixed spurious bug for splitting multiple colons