worked on CRM-12357, fixed generated data
worked on CRM-12357, show bulk mailing activities if they are created.
worked on CRM-12357, fixed pager for mailing listing in mailing tab
worked on CRM-12357, fixed sorting of columns
worked on CRM-12357, implemented getcount api
whitespace fixes
worked on CRM-12357, added contact view option for mailings tab
fixed conflict
Merge pull request #579 from kurund/CRM-12357-final

CRM-12357
CRM-12463
CRM-12463
Merge pull request #583 from yashodha/CRM-12463

CRM-12463
CRM-12463
Merge pull request #584 from yashodha/CRM-12463

CRM-12463
CRM-12464

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* CRM-12464: Search improvements in 4.4
  http://issues.civicrm.org/jira/browse/CRM-12464
get rid of left joins
Get export working
Added generic method CRM_Core_PseudoConstant::get(). CRM-12464

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* CRM-12464: Search improvements in 4.4
  http://issues.civicrm.org/jira/browse/CRM-12464
Added checks for valid array keys. CRM-12464

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* CRM-12464:
  http://issues.civicrm.org/jira/browse/CRM-12464
Added support for 'localize' param in CRM_Core_PseudoConstant::get(). CRM-12464

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* CRM-12464: Search improvements in 4.4
  http://issues.civicrm.org/jira/browse/CRM-12464