Bumped ruby version to 2.1.5
TRUG on 21/01/2015
Added talk about codeship on 21/01/2015
#33 TRUG talk
Merge pull request #34 from wafcio/33_trug

#33 TRUG talk
Images should be served by sinatra assets
Added videos for the TRUG#29
Merge pull request #35 from aokon/archive/trug#29

Added videos for the TRUG#29
Upgraded ruby version to 2.2.0
Merge pull request #36 from aokon/ruby_2_2_0

Upgraded ruby version to 2.2.0