add toggable option for achievement system.
clearer language in config.yml
Merge branch 'master' into issue104

Conflicts:
	build.number
	src/plugin.yml
Add example of how to add treated as primary groups. Fixes #113.
Merge branch 'development' into issue104
add tests around validateHandler
code cleanup
more cleanup
final cleanup
rename validateHandler to validate
Stop using join message during join/login events to prevent broadcasting the message. Fixes #114.
clean up unused import
better throw message.
Merge branch 'development' into issue104
Refactor to move YamlConfig file code into its own method.
basic avatar achievement loader implemented. Finishes #116.
group achievement configuration loader. Finishes #117
implement post count achievement loader
implement section-post-count configuration loader.
implement playerachivement counts. Finishes #106.