Code style & docs.
Lang code restructure from 1c9f455c, applied to Drupal6.php
Update CRM_Utils_System_Drupal6::loadBootStrap() based on CRM_Utils_System_Drupal::loadBootStrap().
Suppress E_NOTICE errors because we can end up with corrupted JSON from Drupal init.
CRM-13085 - Add CRM_Core_TransactionTest

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* CRM-13085: Transaction rollback doesn't work with contact creation (due to ACL TRUNCATE)
  http://issues.civicrm.org/jira/browse/CRM-13085
CRM-13085 - Fix premature transaction commit stemming from TRUNCATE TABLE civicrm_acl_contact_cache

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* CRM-13085: Transaction rollback doesn't work with contact creation (due to ACL TRUNCATE)
  http://issues.civicrm.org/jira/browse/CRM-13085
Fix for issue CRM-13089

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* CRM-13089: CRM_Core_BAO_CustomField::create overrides user-defined name parameter values
  http://issues.civicrm.org/jira/browse/CRM-13089
CRM_Utils_Hook_UnitTests - When running tests from an extension, the extension's hooks should still be called.
CRM-13096, drop unwanted table civicrm_official_receipt

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* CRM-13096: Table civicrm_official_receipt missing from upgrades
  http://issues.civicrm.org/jira/browse/CRM-13096
Merge pull request #1336 from kurund/CRM-13096

CRM-13096, drop unwanted table civicrm_official_receipt
CRM-13156, fixed the wrong property

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* CRM-13156: CRM_Core_BAO_EntityTag::getEntitiesByTag enumerates for incorrect field
  http://issues.civicrm.org/jira/browse/CRM-13156
Merge pull request #1340 from kurund/CRM-13156

CRM-13156, fixed incorrect property name
CRM-12639-minor-fix-for-state-name-display : state abbreviations were getting displayed instead of state names
CRM-13159 enable 'membership_type' as a param on relationship get, display count of available relationships on back-office member form using this
CRM-13160 partial fix, eliminates fatal but doesn't address where there are multiple relationship type possibilities, required to avoid fatals on tests
CRM-13159 need to assign var to tpl
CRM-12869 ensure giftors email is not over-written on behalf membership
unrelated e-notice fixes
CRM-12910 - logButton.tpl - More client-side logic:
 * Use JS variable instead of Smarty variable
 * Construct URL on client side

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* CRM-12910: Display revision history for each item under "Job"
  http://issues.civicrm.org/jira/browse/CRM-12910
CRM-13162 make table for disabled relationships show the same fields as enabled relationships on relationship tab