fix build spec for enum
support the PostGIS adapter (https://github.com/dazuma/activerecord-postgis-adapter)
Merge pull request #140 from keyme/fix_build_spec

fix build spec for enum
Fix typo

Fix typo in rake file setting, "try" should be "true"
Merge pull request #151 from gravitystorm/patch-1

Fix typo
Merge pull request #139 from keyme/support_more_postgis

support the PostGIS adapter
Remove duplicated info
Merge branch 'develop'