Added 175 bcf.
100b-sinatra-template now has favicon, application.css with .flash-error
style, and automatic showing of flash[:error].
Added 176 bcf.
Remove showing flash in layout.erb so students need to add it.
Added 177f.
Update Gemfile.lock in 100b for latest sinatra-footnotes.
Showing all flash keys, not just :error in 100b's layout.erb.
Added 177b and c.
Merge branch 'master' of github.com:davincicoders/2013-q3-rails-1
Merge branch 'master' of github.com:davincicoders/2013-q3-rails-1
Did class assignment