Verify permission before notifying OP
Check coding standards compliance using Travis.
Fix .travis.yml typo and git repo protocol
Add SpInvitations Sprite to Invitations link
Add sprites to Mark All Viewed MeModule menu links

Also cleaned up formatting to match majority.
Change to 3 spaces indentation in Mark All Viewed
Compress select images further
Merge pull request #1911 from Wulfspider/more-compression

Compress select images further
Merge pull request #1908 from Wulfspider/patch-4

Add sprites to Mark All Viewed MeModule menu links
Merge pull request #1907 from Wulfspider/patch-1

Add SpInvitations Sprite to Invitations link
Merge pull request #1905 from vanilla/feature/travis-coding-standards

Check coding standards compliance using Travis
Merge pull request #1902 from vanilla/hotfix/categorynotify

Verify permission before notifying OP