Create parent for parser classes CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Update calls to class constants CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Move redundant parser code into parent CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Create parent for Import/Form/Summary CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Merge stateMachine into one file CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Standardize on name DataSource instead of UploadFile CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Create parent for Import/Form/Preview CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
Create parent for Import/Form/MapField CRM-11254

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* CRM-11254: Create parent class for import
  http://issues.civicrm.org/jira/browse/CRM-11254
-- fixed for CRM-10146, Restricted the creation of same membership and activity again.
CRM-12798 contact detail report date filter
CRM-12802 case report date display
Correct params to CRM_Upgrade_Form::doIncrementalUpgradeFinish().
-- CRM-12653 soft credit amount field in batch entry grid

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* CRM-12653: Add Soft Credit Amount Field to Batch Data Entry
  http://issues.civicrm.org/jira/browse/CRM-12653
-- Indentation fix

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* CRM-12653: Add Soft Credit Amount Field to Batch Data Entry
  http://issues.civicrm.org/jira/browse/CRM-12653
-- CRM-12653 some more fixes

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* CRM-12653: Add Soft Credit Amount Field to Batch Data Entry
  http://issues.civicrm.org/jira/browse/CRM-12653
-- CRM-12653 upgrade handling

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* CRM-12653: Add Soft Credit Amount Field to Batch Data Entry
  http://issues.civicrm.org/jira/browse/CRM-12653
-- CRM-12653 removed the batch copy link for soft credit

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* CRM-12653: Add Soft Credit Amount Field to Batch Data Entry
  http://issues.civicrm.org/jira/browse/CRM-12653
* CRM-12653fix:
  http://issues.civicrm.org/jira/browse/CRM-12653fix
Merge pull request #1007 from ravishnair/CRM-12653fix

CRM-12653 soft credit amount field in batch entry grid
CRM-12251

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* CRM-12251: CiviMember Reports Improvements: Inner Join On Type vs Status and Add "Primary Member"
  http://issues.civicrm.org/jira/browse/CRM-12251
Merge pull request #1009 from deepak-srivastava/hr

CRM-12251