CRM-13922 - Campaign - release respondents assigned to any interviewer

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* CRM-13922: release respondent search doesn't allow you to find contacts reserved to a different interviewer
  http://issues.civicrm.org/jira/browse/CRM-13922
CRM-13922 - Campaign - avoid undefined index error when releasing respondents

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* CRM-13922: release respondent search doesn't allow you to find contacts reserved to a different interviewer
  http://issues.civicrm.org/jira/browse/CRM-13922
html error - checked declared twice
Merge pull request #2179 from eileenmcnaughton/html-fixup

html error - checked declared twice
CRM-13919 - Improved form rule to handle add mode differently.

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* CRM-13919: Fatal error when user accidentally uses duplicate transaction # while recording a contrib.
  http://issues.civicrm.org/jira/browse/CRM-13919
Merge pull request #2181 from davecivicrm/CRM-13919a

CRM-13919 - Improved form rule to handle add mode differently.
fix typo
take into account the current_employer pseudo field
Allow Participant roles to be specified as an array
Merge pull request #2174 from jmcclelland/release-all-survey-respondents

Release all survey respondents
Merge pull request #2184 from eileenmcnaughton/typo

fix typo
Merge pull request #2188 from kirkatcaat/4.4

Participant BAO can accept role IDs in an array
Merge pull request #2187 from tttp/CRM-13949-current-employer

CRM-13949 take into account the current_employer pseudo field in api.contact.get
CRM-13948

Hook alter mail params needs more info (id)
CRM-13954 processGreetings contact object query condition
CRM-13957 - import - undefined index when mapping fields

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* CRM-13957: 2nd page of Import script reports undefined index
  http://issues.civicrm.org/jira/browse/CRM-13957
CRM-13957 - import - avoid non-object error

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* CRM-13957: 2nd page of Import script reports undefined index
  http://issues.civicrm.org/jira/browse/CRM-13957
CRM-13960 - import - ensure empty fields don't throw validation errors

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* CRM-13960: importing an empty custom data value for bolean type results in validation error
  http://issues.civicrm.org/jira/browse/CRM-13960
Merge pull request #2201 from jmcclelland/import-empty-custom-boolean

CRM-13960 - import - ensure empty fields don't throw validation errors
Merge pull request #2198 from jmcclelland/undefined-index-import

CRM-13957 - import - undefined index when mapping fields