Remove the multiplication of lcMessages in url when switching language
Get the default language from database not from current viewing language

Conflicts:
	CRM/Core/BAO/ConfigSetting.php
CRM-11993 Fixes - Few bugs on switching language

https://issues.civicrm.org/jira/browse/CRM-11993
CRM-11993 - QA fix

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* CRM-11993: Few bugs on switching language
  https://issues.civicrm.org/jira/browse/CRM-11993
CRM-11993 - Onchange locale(Language Switcher) reload on the same page

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* CRM-11993: Few bugs on switching language
  https://issues.civicrm.org/jira/browse/CRM-11993
Merge pull request #4674 from atif-shaikh/CRM-11993

Crm 11993