Added sinatra-footnotes and rack-flash and bcrypt gems
Added 173 bcf and 174f.
Updated 174f with mockup, registration, welcome, pre-supplied username-password pairs.
Added 174b.
Added 174c.
Oops, old Gemfiles don't have sinatra-footnotes and rack-flash3.
Merge branch 'master' of github.com:davincicoders/2013-q3-rails-1
Got get handler and part of transactions.erb working