Rename fields in RowColumns to be more accurate
Make do_async take pointers (rather than references to pointers) to get around pointer aliasing rules
UT fixes
Change ownership of OPeration/Transaction during async execution
More UT fixes
Add a delete_slice utility function
Move cassandra test utilities to cpp-common
Restructure cassandra utilities
Do not create a cassandra store thread pool with no threads
Cassandra store SAS logging#
Mock SAS enhancements
We don't cover real cassandra clients in UT
Markups
More markups
Merge pull request #154 from Metaswitch/sto831_2

[Reviewer: Rob] cpp-comon infrstructure changes