Fixes to Accept-Contact/Reject-Contact handling - proper handling of boolean parameters, negation, and quoted-string comparison
Merge branch 'handlers_crash' into accept_contact
Merge branch 'handlers_crash' into accept_contact
Fixes to negation in token list matching
Plug code coverage gap
Brace style fixes
Merge remote-tracking branch 'origin/master' into accept_contact
Remove the concept of an UNKNOWN match
Update commenting
Fix Reject-Contact logic bug
Merge remote-tracking branch 'origin/master' into accept_contact

Conflicts:
	modules/pjsip
Merge pull request #729 from Metaswitch/accept_contact

[Reviewer: Andy] Fix up contact filtering issues