Fix User#on_team?
fix TeamsController#show
clean up Team model duplication and fix grouping

- Remove duplicate association declarations
- Remove duplicate method declarations
- Remove duplicate mount_uploader
- Remove duplicate callbacks
- Remove duplicate validations
- Group associations
- Group callbacks
- Group validations
Merge pull request #261 from jakegavin/welcome-email-bug

Bounty #455 - Fix User#on_team?
Merge pull request #262 from codebender/team_model_cleanup

clean up Team model duplication and fix grouping - Bounty 462
Merge pull request #263 from jakegavin/fix-missing-opportunity

Bounty #459 - Fix
destroy zombie likes when likable is invalid

 - or when a Like tracking code doesn’t associate to a user
Merge pull request #260 from codebender/bad_likes

destroy zombie likes when likable is invalid - Bounty 456
Remove blog from coderwall
Merge pull request #266 from lblackburn/master

Remove blog from coderwall
Added z-index to make clicking the upvote button possible
remove leaderboard
Merge pull request #267 from seuros/master

remove leaderboard
Refactor opportunities controller tests to separate one assert per test
Add remote to opportunity
Add remote tag in the opportunity partial
Add remote filter into the jobs listing page
Filter opportunities by remote
Updated i18n
fixed .ruby-version
load view analytics in job only in production
show notice
Trivial replacements of with_username