Bug 8541 - Reopen Closed Tab
This adds a feature Open Last Closed Tab similar to Google Chrome.
This acts like a backwards linked-list which opens documents in the order of closing.
ClosedDocumentNavigationPoint is a type specifically for this action.
This required an enhancement to the NavigationHistoryService to support this new kind of items.
*Should I have split this to a new service?
The need of the ReorderTab to fix visual appearance of tabs when reopening.
Reverting external. Forgot to update submodules.
Fixed up copyright.
Fixes that slluis asked for.
Merge pull request #284 from Therzok/openLastTab

Bug 8541 - Reopen Closed Tab