Merge pull request #1 from gregmolnar/devise_setup

devise scaffold
pow config
login as root path
remove registration option
login view
default user
dashboard controller
bundle edge bootstrap-sass
remove junk
navigation
push down content
more top padding
clients scaffold + changed rspec to minitest
simpleform bs3
add clients to nav
separate simple form bootstrap conf
fix logout link + expand nav
codeclimate
Merge branch 'custom'
invoice statuses