Change for specs
order test finished
half way passing tests of category
corrected all cucumber test and added a few steps
basic login
add methods like currentUser in ApplicationController
modifiction on application_controller: refresh exp_time
forget to add files
small bug on first visit index
Merge pull request #1 from KevinXuxuxu/feature/login

Feature/login
altered article with user loged in
Add order in. Add relevant tests in.
Add upward and downward method. Add relavent tests.
merge to master
Merge branch 'feature/category_order'
Generate posts and topics.
Topics and relative tests are finished
Add spec/factories/topic.rb
modify topics_controller.rb to keep conssistent
Merge pull request #3 from KevinXuxuxu/feature/post_and_topic

Feature/post and topic