move postgres out of the proudction block
bump version; update changelog
Merge branch 'release/0.1' into develop

* release/0.1:
  bump version; update changelog
Merge branch 'develop' of github.com:cyanglee/bigheart into develop

* 'develop' of github.com:cyanglee/bigheart:
  comment out sqlite
  bundle updating sqlite3 again
  bundle updating sqlite3