Merge pull request #127 from theponti/add-categories-files

Add categories files
Merge pull request #129 from theponti/add-categories-files

Add categories files
Add colors for categories
Merge pull request #132 from theponti/add-categories-files

Store categories in service
Add user profile page
Merge branch 'develop' of https://github.com/theponti/backpack into add-categories-files