A custom ApplicationConfigurationException
 Raise ApplicationConfigurationError and dont' repeatedly test for its standard message prefix
A separate test case for parsing of restart policy configuration
Establish a link between FlockerConfiguration.applications and FlockerConfiguration._parse_restart_policy
Establish that FlockerConfiguration._parse_restart_policy is _parse_restart_policy
Simplify the first test
Fix docstring references
Move an applications test to the top of the test case
Simplify another test
Simplify the RestartAlways test
Simplify the RestartOnfailure test
Simplify the RestartOnfailure test with retry_count
Simplify the RestartAlways with unexpected key/value test
Simplify the RestartNever with unexpected key/value test
Simplify test for incorrect maximum_retry_count value type
Simplify test for extra keys
Simplify test for non dict config
Perhaps this'll be clearer at the top of the class
Raise an exception if the user forgets to supply a name in the config.