Commits on Jan 18, 2017

1. add methods to ensure frame state stays consistent

   

   cbrewster committed Jan 18, 2017

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   eedff27

2. Implement history state, pushState, replaceState …

   Add HistoryStateId
   
   Added state id to browsing context
   
   add history state removal
   
   Updated test expectations
   
   fix tidy issues and remove document parameter
   
   fix spec link
   
   Add popstate event
   
   address review comments
   
   enable 001 and 002 history interface tests
   Add 001 and 002 to the intermittent check
   
   rebased.
   
   fix tidy issues
   
   Update test expectations
   
   rebase
   
   Store and set Url, compare FrameState during traversal

   

   cbrewster committed Jan 18, 2017

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   92bf862