fix start condition, it should now provide a much cleaner error in the case of a boss.config error

fix #246
use specific version instead of HEAD for some deps
Merge branch 'master' of https://github.com/ChicagoBoss/ChicagoBoss into deps

Conflicts:
	rebar.config
 use specific version instead of HEAD for some deps
Merge pull request #400 from danikp/deps

Deps
Merge pull request #402 from zkessin/master

fix start condition, it should now provide a much cleaner error in the c...
change the bossdb version
Merge remote-tracking branch 'upstream/master' into fix_model_with_subfolder