variable 7.x-1.1

90dff9d Issue #1232286: Added Account cancellation confirmation email variable not declared.
66969d4 Issue #1203044 by Sweetchuck, Jose Reyero: Fixed Radios does not support the option groups.
01d311f Issue #1218698 by q0rban, Jose: Fixed Using variable_get_value() in hook_url_outbound_alter() causes infinite recursion.
a1236b0 Added Variable Advanced module for some hidden variables. Changed default language to regional settings.
a26a9bc Added language default variable and group for advanced settings.
21cc1b3 Issue #1201600 by q0rban: variable_include static var doesn't get set for variables.
0acb670 Issue #1206816 by bgm: documentation: variable.api.php, function hook_variable_group_info does not return
9736d37 Issue #1190452 by Boobaa: Bupport for 'validate callback'
7ed8a97 Issue #1205724 by webflo, Jose Reyero: not needed i18n_variable_list(), wrong dependency in variable_store()
93c8631 Issue #1154134 by Berdir: E_NOTICE triggered when used in combination with i18n_node