Merge pull request #90 from MargaretLangley/master

Print and view updates
simple_button => plain_button
Merge branch 'master' of github.com:BCS-io/letting
Index edit to use plain-button style, Warn button added. CSS Fix for base anchor css overriding button css
edit_link helper added. Removed unused index file
applicaiton helper delete_link added
Feature tab dialogs
HTML typo
invoicing update route
changing format of rails hooks for consistency.  after_intiailze =>  after_initialize: init
Guide & Template update to no blank items