Merge branch 'hotfix/v0.2.3'

* hotfix/v0.2.3:
  Bumped version number
  Dropped assetic:dump from scripts
Use RACK_ENV for console environment
Bumped version to 0.2.4
Merge branch 'hotfix/v0.2.4' into develop

* hotfix/v0.2.4:
  Bumped version to 0.2.4
  Use RACK_ENV for console environment