Update docs to reflect AKA auth
Merge pull request #139 from Metaswitch/av_docs

[Reviewer: Graeme] Update docs to reflect AKA auth
cpp-common update
Merge pull request #141 from Metaswitch/cpp_update

[No reviewer] cpp-common update
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Take master cpp-common
Take master cpp-common
Merge pull request #142 from Metaswitch/cpp-common-overload

[No review required] Take master cpp-common
Set up our logging functionality earlier
Update homestead_api.md

Fix public_id option
cpp-common update
Merge pull request #144 from Metaswitch/cpp_update

[No reviewer] cpp-common update
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Take latest cpp-common and sas-client
Pull in latest cpp-common
Merge pull request #143 from Metaswitch/iss7

[Reviewer: Rob] Set up our logging functionality earlier
Take latest cpp-common
Update cpp-common
Quote ;transport=TCP correctly
Merge branch 'iss132' into dev