removed authentication for jobs#index & & show
add jobs link on home-page footer
added dynamic titles for jobs
added company titles
added page titles to Knowledge base
removed authentication from companies show and index page
added swiftype search
search tweak
change search back to 'overlay'
added intercom.io
added letter_opener gem
Merge pull request #16 from Vars5/master

Title + alphasearh integration + 9 July changes