Update cpp-common
Add logs if HSS gives us an IRS that doesn't contain a SIP URI
Merge remote-tracking branch 'origin/dev' into police_irs
Markups
Minor comment edit
Merge pull request #154 from Metaswitch/police_irs

Reviewer Ellie: Add logs if HSS gives us an IRS that doesn't contain a SIP URI
Change Metaswitch submodule refs to ClearwaterCore