Update cpp-common and add commit call
Merge pull request #74 from Metaswitch/commit_log

[No reviewer] Update cpp-common and add commit call
Update cpp-common
Merge pull request #76 from Metaswitch/cpp_up

[No reviewer] Update cpp-common
New cpp-common branch
Advertize Rf as accounting on CER messages
Add application IDs to ACRs
Take cpp-common at master
Merge pull request #80 from Metaswitch/various-application-id-fixes

Reviewer Ellie - Various Application ID fixes