Add jshint task using Grunt
Fix jshint warnings
Use dotfile for jshint config
Fix jshint warnings in existing files. Remove jshint settings from top of files.
Add js view files to Grunt jshint taks
Fix jshint warnings in js views
Remove jQuery global var as declared in jshint config
Update readme with new grunt instructions
Merge pull request #98 from ministryofjustice/feature/grunt-jshint

Add JSHint grunt task to check new JS files.