improve nav bar; add link about page; change button class; rmv hardcoded style; add tips on modal  rhytmViewport
first css clean-up round
change path img btn
add btw black version
fix url img
accept rhythms from the URL
Merge remote-tracking branch 'trikkia/master'
add about page
add link about page
minifix
fix controlsContainer markup
improving modal window markup
minifix
move images in pics
port index.html changes back to index.haml
Merge remote-tracking branch 'trikkia/master'

Conflicts:
	index.html
more html to haml backporting after merge