Adds username and password to redmine tracker config.
Using local variable for configuring redmine tracker settings.
depend on Faraday for the hubot notification service
add hubot icon
use the correct images
add hubot service
add test and code for the hubot notification service
copy&paste, bad boy
replace faraday with httparty
Merge pull request #373 from luxflux/hubot-notification

Hubot notification service
update airbrake api to 2.4
Merge pull request #360 from errbit/airbrake-2-4

update airbrake api to 2.4
Update Devise in response to posted security bulletin

ref: https://groups.google.com/forum/?fromgroups=#!topic/plataformatec-devise/hj6i26Dvshw
Merge pull request #378 from cheald/master

Update Devise per posted security bulletin
add helper to generate urls at a single point
add problem url into the chat message
Config must be symlinked before assets:precompile is run
Ignore SECRET_TOKEN absense during assets:precompile

This is necessary because Heroku environment variables
are not available during assets precompile stage.
Merge pull request #381 from khustochka/heroku_assets_precompile

Ignore SECRET_TOKEN absense during assets:precompile
Typo [ci skip]