CRM-10682 - move wpBasePage to setting object, cache in config

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* CRM-10682: Let frontend WordPress pages use template other than home page
  http://issues.civicrm.org/jira/browse/CRM-10682
Remove empty operators for dates in search builder CRM-12712
CRM-12718

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* CRM-12718:  in_array() expects parameter 2 to be array in IDS.php
  http://issues.civicrm.org/jira/browse/CRM-12718
CRM-12721 Change a=true to a=1. Add fe=1 if missing. Add conditional to display URLs for WordPress sites where missing.

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* CRM-12721: Correct crmURL parameters and add option for WordPress link display
  http://issues.civicrm.org/jira/browse/CRM-12721
Merge pull request #898 from dlobo/CRM-10682

CRM-10682 - move wpBasePage to setting object, cache in config
Merge pull request #902 from colemanw/searchBuilderDate

Remove empty operators for dates in search builder CRM-12712
Merge pull request #904 from dlobo/CRM-12718

CRM-12718
Merge pull request #905 from davecivicrm/CRM-12721

CRM-12721 Change a=true to a=1. Add fe=1 if missing. Add conditional to ...
worked on CRM-12723, hide top nav bar on wordpress frontend
Fix versionAlert setting CRM-12701
Merge pull request #907 from kurund/remove-nav

worked on CRM-12723, hide top nav bar on wordpress frontend
notice fix
CRM-12726 : applied patch and did some modifications
CRM-12726 : code improvement
Merge pull request #915 from pratik-joshi/CRM-12726-fix

CRM-12726 : applied patch and did some modifications
CRM-12728-fix : fixed notices
Merge pull request #918 from pratik-joshi/CRM-12728-fix

CRM-12728-fix : fixed notices
CRM-12681, fixes for j2
Merge pull request #921 from kurund/notice-fixes

notice fix
Simplify case title and remove redundant phrase CRM-12453