Merge pull request #86 from tdb/master

external_url needs to start with https
Adds gitter support
Implement suppport for the gitlab_ssh_host setting
Adds travis + bitter integration, now updates chatroom when commits happen.
Merge pull request #88 from DavidS/master

Implement suppport for the gitlab_ssh_host setting
Adds spec watching to guard file
Adds spec tests for issue #88
Correct gitlab_ssh_host comment
Fixes typo
Fixes issue #89
Adds ldap_servers parameter
Adds documentation for ldap servers
Adds parameters backup_upload_connection and backup_upload_remote_directory
Adds backup_upload_remote_directory tests
Complete rewrite of ldap since gitlab 7.4 dropped the old parameters
Bumps version to 2.4.0
Removes fail message if running 7.4.x and ldap
Changes version to 2.3.5
Corrects year in changelog

fixes issue #92 incorrect years in changelogs
Updates parameter documentation
Adds documentation for manage packages (issue #93)