use environment variable for project night url
Merge branch 'master' of github.com:bostonrb/bostonrb
Fix Railsbridge Boston URL.
Merge pull request #169 from paulstefanort/master

Fix Railsbridge Boston URL.
Fix link to RailsBridge Boston installfest instructions
Update link to main RailsBridge Boston page to use 'link_to' for consistency
Tweak copy for project night page (grammar and readability)
Merge pull request #170 from djpowers/master

Fix broken links and update copy on Project Night page