Merge tag '0.2' into develop

release 0.2
Merge tag 'readme-fix' into develop

Readme fixed
Draper using
Review fixes
Comments editing in story form
respond_with used for web
responders gem used
ruby contracts used
paginates_per removed from Story model
User and Story associations
semver used
cleaning
UserEditType used
wrong asserts used
Concerns module is used for concerns
Comment is maked a nested resource of Story
email sequence extracted
newrelic
og
sleep test
test