Refactor authz strategy
Embeds the authz in the same table
Introduces the Guarded interface
Requires db migration
Improving the query 'runByInstanceId' by introducing a field name_ on RuntimeParameter.
Changing mode of working with hsqldb from LOCKS (table locking) to MVCC (row locking).
fix unit test failure because of different ordering of tests; ensure accounts don't exist before initializing them
Merge branch 'master' of github.com:slipstream/SlipStreamServer
Merge branch 'master' of https://github.com/slipstream/SlipStreamServer
Fixed a bug where a Cookie can have multiple expiryDate.
Ensure that the first abort message will not be overridden.
Log number of VMs collected for a user.
Minor - changed name of a local variable for clarity.
Avoid NPE if password for a user is not defined.
Log the purpose of the authentication failure.
Merge branch 'master' of github.com:slipstream/SlipStreamServer
Avoid NPE by validating entity.  Provide meaningful error messages to the user and log them as well.
Merge branch 'master' of https://github.com/slipstream/SlipStreamServer
Merge branch 'master' into issue_191