added rspec for topic model
topic should eq a title
rspec passed
added rspec for topic model
topic returns a body
rspec passed
added validations for presence of body and title in topics model
added valid params rspec for topics model
added rspec to test belongs to user for topic
added rpsec assocations for topic model
has many tags
has many comments
rspec passed
completed rspec tests for topics model
fixed merge conflict
Merge branch 'stcrestrada-master'
Merge pull request #18 from stcrestrada/master

JWag and Estrada merge 2