added support for non-rails environments
added active-record initializer for non-rails environments
added `add_hstore_index` and `remove_hstore_index` migration methods
added `install_hstore` and `uninstall_hstore_index` migration methods
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short syntax
Merge pull request #61 from releu/patch-1

Update README.md
Merge pull request #58 from virtualstaticvoid/migration_support_latest

Migration helper functions
merged conflicts
fixed indentation
moved require of database driver out of railtie so support non-rails environments
Regenerate gemspec for version 0.4.1
Version bump to 0.5.0
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Version bump to 0.5.1
[fix #64] moving jdbc dependency to development group
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moved pg gem to development dependency
moved pg gem to development dependency
Regenerate gemspec for version 0.5.2