First update
Merge branch 'master' of github.com:Metaswitch/sprout into iss404
Updates after test
Merge pull request #442 from Metaswitch/iss404

[Reviewer: Rob] Iss404
Set status code to 504
Add 403 response
Use correct error code when terminating user isn't registered
Correct typo
Merge pull request #449 from Metaswitch/iss443

[No reviewer] Use correct error code when terminating user isn't registered
Update Development.md

Update packages to install
Add P-Charging* headers to incoming requests
Update terminating conditions
Merge pull request #454 from Metaswitch/issue443

[No reviewer] Update terminating conditions
Merge branch 'master' of github.com:Metaswitch/sprout into p_charging_headers
Updates after review
Merge pull request #452 from Metaswitch/p_charging_headers

[Reviewer: Andy] Add P-Charging* headers to incoming requests
Get status text from code
Merge pull request #448 from Metaswitch/iss402

[Reviewer: Mike] Set status code to 504
Use error code in subscription.cpp
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