add state change history cleanup script
pass through notification rule validation errors for API requests, fixes #184
Merge branch 'master' of github.com:flpjck/flapjack
Merge pull request #238 from ali-graham/184_api_emit_rule_errors

pass through notification rule validation errors for API requests
Merge branch 'master' of github.com:flpjck/flapjack
update changelog
allow new api format for posting sched maint - fixes #239
handle exceptions in the api - log stack trace and error, related to #180
clean up logging calls somewhat
Merge pull request #241 from jessereynolds/239_sched_maint_500

log exceptions in api, handle new scheduled maintenance api format
update changelog
Merge branch 'master' of github.com:flpjck/flapjack
update submodule pointer