Update cpp-common to master
Take new rapidjson
Fix joke indentation effort
Merge pull request #146 from Metaswitch/rapidjson

[DON'T MERGE] [REVIEWER: AMC] Take new rapidjson
Define charging addresses class
Add ccfs and ecfs to schema
Cache changes for putting and getting charging addresses
Enhance the Cx layer to support charging addresses
Define empty charging addresses method
Add the charging addresses to the XML
Make PPR's charging_addresses method return true or false depending on presence of Charging-Info AVP
Rename IMSSubscription cache methods to RegData
Add ChargingAddresses to ImpuRegDataTask
Complete rename of IMSSubcription cache methods to RegData
Edit PutRegData to allow updating specific fields after PPRs
Edit PutRegData to allow updating specific fields after PPRs
Update SAS logs for sto851
Add a non default constructor for ChargingAddresses to use in testing
UT charging addresses header
Enhance xml utils UTs for charging addresses