Remove the duplicated configuration.
Add the audit logs for deposit and withdraw.
Merge branch 'master' into audit_log

Conflicts:
	db/schema.rb
Updated the annoate.
Move the audit related model to audit folder.
Move the audit reloated class to the right context.
After a long talk with Jan. We make a decison that.
1. Use Member.current instead of get current_user from controller.
2. So no need use Sweeper and use standard observer.
Add tests for the audit log related stuff.
Fixed display account version data at admin panel
Merge pull request #121 from peatio/audit_log

Add audit log to Peatio
Part work for the Ticket System.
Merge branch 'master' into ticket_system
Fix rspec error about account.currency.to_sym
add translations for two factor auth timeout
fix spec
enable/disable user account on admin panel
prevent disabled user login
More I18n work for ticket system.
fix trades api bug
prevent disabled user using API