Merge pull request #46 from xithan/master

resolved error "undefined method 'updates'"
remembered that just removed content_changed?
Merge branch 'master' of https://github.com/wagn/wikirate
add views for base preview and shorter search result
new line
json for company and topic page
handle about in a new view
new line
no need to test whether there is editor
tweaked titled_with_edits and edits_by views
remove excessive subformat args
update analysis, company and topic structure
Merge remote-tracking branch 'henry/import_json'
add back empty tab content script and source summary, fix wrong spelling of activate
deleted companyAndTopic json
tidied up voting
Merge pull request #48 from xithan/master

voting
refactored voting
Merge remote-tracking branch 'decko/master'
fixed vote count card
automatically create vote count card if it doesn't exist