Fix bug DNN-5515: check whether other tab use the URL.
Fix bug DNN-4784: make the input element full fill the container.
Fix bug DNN-5428: Register System referenced 3rd party assemblies.
Fix bug DNN-5614: update the token to new format, move code mirror initialize before dnn tabs code.
For Social-3267: upgrade jQuery.history.js
Merge remote-tracking branch 'dnnsoftware/development' into DNN-5481

Conflicts:
	DNN Platform/Library/Services/Upgrade/Upgrade.cs