Plumb the SIP URI through the AoR and Binding data structures
Add and test GRUU creation support
GRUUs included on REGISTER response
Filter requests based on GRUU
Fix up gr param checking and add NOTIFY support
Fix NOTIFY bugs
Fix up XML validation bugs
Prevent users from specifying their own pub-gruu parameters
Merge remote-tracking branch 'origin/master' into gruu

Conflicts:
	sprout/Makefile
Get UTs running without crash
UT complete
Add SAS events
Pre-review cleanup
Code review markups
Take master cpp-common
Update memento to latest version
Code coverage of log truncation
Fix incorrectly inverted test
Merge remote-tracking branch 'origin/master' into gruu
Merge pull request #752 from Metaswitch/gruu

[Reviewer: Mike] Add support for public GRUUs