Added base grunt and sass files
New watermark image
Added styles for correspondence letter
Merge branch 'develop' into feature/front-end-rewrite
[3661] sass tweaks
[OE-3661] JS fixes
[OE-3381] Replaced old CSS with new version
[OE-3381] Deprecated the view files
[OE-3381] Updated view files with refactored markup
[OE-3721] Replaced images
Merge branch 'develop' into jira/3604