New cpp-common ref
Merge pull request #74 from Metaswitch/update_cppc

[No review required] Update cpp-common
Take latest cpp-common
Merge remote-tracking branch 'origin/dev' into Rename_Handlers
Merge pull request #73 from Metaswitch/Rename_Handlers

[Reviewer Alex - Do not merge] New cpp-common ref
New cpp-common reference
Take latest cpp-common
Take latest cpp-common
Take latest cpp-common
cpp-common update
Merge pull request #76 from Metaswitch/cpp_update

[No reviewer] cpp-common update
Take latest cpp-common
Merge remote-tracking branch 'origin/master' into update_cppc