waiting list signup fixes, CRM-14225

----------------------------------------
* CRM-14225: Waitlist signup not working for full paid events
  http://issues.civicrm.org/jira/browse/CRM-14225
Merge pull request #2672 from kurund/CRM-14225

waiting list signup fixes, CRM-14225
Merge pull request #1773 from davejenx/CRM-8338-merge-by-household

CRM-8338 implement CRM_Contact_Form_Task::mergeContactIdsByHousehold(), ...
Merge pull request #2673 from kurund/CRM-8338

backport household merge fixes to 4.4, CRM-8338
-- CRM-14113 fixed search builder error for activity type and activity status

----------------------------------------
* CRM-14113: Activity Search Builder
  http://issues.civicrm.org/jira/browse/CRM-14113
Merge pull request #2681 from pradpnayak/CRM-14113

-- CRM-14113 fixed search builder error for activity type and activity s...
Remove activityChangeStatus.js
CRM-14215 - add no-popup class to case links
CRM-10693 HR-310 - Use ajax framework to view case activity & revisions
CRM-13966 - Simplify reassign case form with ajax framework and select2
Remove stray debug statement
CRM-10693 HR-310 - Use ajax framework for edit case activities, relationships, etc
CRM-14259 Webtest for Contact Export
CRM-14355 - test auditing existing limit behaviour

----------------------------------------
* CRM-14355: make api treat limit = 0 as an unlimited request
  http://issues.civicrm.org/jira/browse/CRM-14355
CRM-14259 Further Improvements
CRM-14338-2 fix prefix/suffix on profile view page
CRM-10693 - js fixes
CRM-13863 - Add select2 class to activity links
Merge pull request #2694 from monishdeb/CRM-13981

CRM-13981, Minor fix on contribution page
Merge pull request #2691 from atif-shaikh/CRM-14259

Crm 14259