Merge pull request #13 from akesulah/development

Update Idea views show.html file
Resolves #12
Fix routes

/ is now mapped to ideas#index controller method.
Merge branch 'development' of github.com:tktl-app-ideas/appideas into development
Delete Aki's testfile
Create destroy dependent from idea to idea_keyword

Now when a single Idea is deleted all the related values from idea_keyword table are deleted also.
However all the Keywords are still in Keyword table.