Fix errors in category
Add column default_markup to Site table
Merge branch 'active-record' of github.com:komagata/lokka into active-record
Add tasks spec:unit and spec:integration
Fix unit test.

and divide helpers to permalink_helper
Merge branch 'active-record' of github.com:lokka/lokka into active-record
Fix spec
Change travis url
Fix a bug in LoadError
Fix pager
Remove waste HTML tag
Fix category
Merge pull request #191 from rono23/fix-category

Fix category on active-record branch
Add secret to cookie
Move helper function.

and use sinatra namespace