Welcome page and invoice header. This is a combination of 12 commits.
fixes conflicts
moves remove col to start of invoice edit table

completes invoice header layout

fixes minor issues from issue log including form layouts, hover state etc

file structure for welcome page

tests for signed in and signed out

connects footer home link and navbar logo to welcome page when signed in

sign in directs you to new welcome page

adds images for welcome page

updates bills image

adds news to subnav

adds new analysis icon and starts work on responsive layout and flip transition on tools and account

corrects white space errors
fixes cucumbers
Merge pull request #34 from ebanni/pdfv3

Welcome page