Improves doc strings in class CRM_Utils_Api.
Improves doc strings in class CRM_Utils_Array.
Merge branch 'master' of github.com:civicrm/civicrm-core into docstring-cleanup
Cleans up class CRM_Utils_Constant doc string slightly.
Adds docstrings to the methods of class CRM_Utils_Crypt.
Merge branch 'rcsheets-docstring-cleanup'

Conflicts:
	CRM/Utils/Array.php