* issue #163: also fix for activity

* Fix action AddToCase -> error on api3 getvalue with limit => 0, changed to 1
* Add Activity action: remember send_email "no" selection with !191
* Fix Activity trigger when triggered for all contacts with !192
* Added hours and minutes option to the Activity Scheduled Date trigger (#191)
* When trigger is scheduled before the activity date/time it triggers now _after_ the trigger time is reached (See #191)
* Add `Contribution Source` and `Contribution Is Pay Later` conditions  (See !194)
* Add `Contact is (not) of Type(s)` condition (See !195)
* Add condition `xth Contribution in Last Time Interval` (see !196)
* Fix #163: retrieve custom field if needed for activity add action when delayed date in custom field is used

* add xmlMenu function to civirules.php (mixin issue with older CiviCRM versions)
* !190: Don't crash if contact ID does not exist (eg. was deleted) and code cleanup caseaddrole

* Fixes #189: action on activity AddToCase ignores deleted cases
* !180 Replace deprecated function getTimeRaw().
* Fixed #177: "Event reached date" trigger fires prematurely when setting a "before" offset.
* Fixed #178: "Event reached date" trigger fires daily on the same participants.
* Implemented integration with config item extension. For importing and exporting civirules configuration.
* Fix !178: Api4 tag remove/add action for non-admins.
* !179: Add an Activity Subject condition.
* !181: Show label for 'Field value comparison' description. Add description to SetCustomField action.
* !182: Support multiple membership types for "Contact has active membership of type".
* Fix #182 by !183: Domain conditional selection shows a maximum of 25 domains.
* Fix #183 by !184: Only show active/visible groups in group conditions / actions.
* Changed date format for comparison value to YmdHis to fix #186 by !185
* Always use ymd format for dates in field value comparisons  by !186
* #188 activity action: condition target/assignee on relationship contacts by !187
* !188 For CRON date triggers don't trigger on deleted(is_deleted=1) or disabled (is_active=0) cases,activities,events.