elaborated comment on drop event
update msc in comment of mscgenui with a linebreak
Update & add tooltip texts. Added funky meta tag to flog best behavior out of IE.
Update cheat sheet
copy cheat sheet to images
update test07_billing_query.mscin
clean up css
prepare help/ cheat sheet feature
Update build.md
Add cheat sheet to demo
merge for gh-pages build
build