changed database.yml sample
for google drive clound storage
Added counter of all questions
Merge pull request #64 from hlee/master

added counter of questions
Fixed #47
add sidebar partial
move add button to the sidebar
remove modify and delete button from index page
Merge remote-tracking branch 'upstream/master'
add question column to the users table
Merge remote-tracking branch 'upstream/master'
User can see all the tags from the nav