Moved Heroku deployment into a separate page

Previously, users were prompted to deploy to Heroku four times
in the normal Railsbridge flow.

Now, users are periodically prompted to go to a separate page that
instructs them on how to deploy to Heroku if desired. They can choose
to visit this page as often or as seldomly as they like.
Merge pull request #111 from tjgrathwell/heroku_as_appendix

Moved Heroku deployment into a separate page
Update Homebrew installation url.
Update rvm syntax for installing gem in gemset
Update Komodo link.
Merge branch 'master' of https://github.com/gkop/docs into gkop-master
'type yes and hit enter' was missing the 'enter' due to html sadness
Replace 'InstallFest' on site footer with 'Docs'
Added a Site Index page to the upper-right menus
Explain the purpose of app/assets and how we use it instead of /public
adding intermediate rails curriculum
move rails resource discussion
curriculum updates from github workshop
removed combined devise and static page step
add rails guide link to static page resources
fixed tip typo
copy edits
changes from nov 9 workthrough
combined steps 0 and 1
rename twitter bootstrap to just bootstrap also other copy edits