Production release of version 1.2.0.0

Updates since v1.1.0.0
----------------------

Bug Fixes

 * WordPress language template file for the plugin is now up to date.
   (Issue #15)

 * Typo in UI "Default Role" selection is fixed. (Issue #22)

 * The default user roll defined by config.php is now only set once and
   is not reset if an Administrator has adjusted the user's role after
   the account has been created. (Issue #26)

Features & Updates

 * Changed branding for plugin to "WordPress CAS Client"
   (Issue #2 & #21)

 * In a WordPress multisite installation the plugin settings now apply
   to all sites within the install instead of each site having their own
   settings. (Issue #1)

 * Updated deprecated functions (Issue #9)