Add isEmpty method to MessageBag. Closes #1579.
Added prefix to APC cache store. Cleaned up methods. Fixes #1573.
Consider mailto: and tel: valid links in HTML builder. Fixes #1569.
Merge branch '4.0'
pull pretend value from config.
change log.
Merge branch '4.0'
Merge branch 'master' of https://github.com/laravel/framework into dev-databot