upgrade to ruby 2.1.3
Merge pull request #185 from DefactoSoftware/ruby-2.1.3

upgrade to ruby 2.1.3
toggle test coverage based on env variable
let users enter a description with hashtags when entering time
autocomplete hashtags
mention tags in the description placeholder
use atwho styling with minimal customization
implement tags overview
refactor calculating hours spent and percentages
Fix entries tables for mobile
downcase tag id for finding  by slug
Merge pull request #178 from DefactoSoftware/hashtags

[READY] let users enter a description with hashtags when entering time
Add hashtel for users without gravatar
Merge pull request #187 from DefactoSoftware/hashtel-avatar

[READY] Add hashtel for users without gravatar
improve description placeholder
upgrade ruby to 2.1.5
Merge pull request #190 from DefactoSoftware/jurre/ruby-2.1.5

upgrade ruby to 2.1.5 (CVE-2014-8090)
upgrade rails to 4.1.7
Merge pull request #191 from DefactoSoftware/jurre/rails-4.1.7

upgrade rails to 4.1.7
set the title of a avatar to the given user, not current user