Fix up Guardfile.
Add a note on the license in the README.
Bump the copyright year.
Add a way to get execute a real query during tests.
Allow Utils to be included and include it into itself.
Add a Utils#strip_heredoc method like in ActiveSupport and clean up SQL.

This makes the generated SQL and the SQL in tests so much easier to
read.
Only return base and user-created types and not TOAST types and the like.
Add tests for types.
Add some initial support for creating TYPEs starting with ENUMs.
Allow variable arguments to replace Arrays in a few situations.
Move index_tests.rb to indexes_tests.rb.
Point to the activerecord-spatial gem instead of geos-extensions.
Rename adapter_tests.rb to adapter_extensions_tests.rb.
Use a custom PostgreSQLExtensionsTestCase class for running tests.
Add a tagged logger similar to the one from Rails 4.
Fix formatting and whitespace on copy_from_file-generated SQL statements.
Alias copy_from_file to copy_from.
Replace tabs with spaces.
Simplfy feature detection.
Add the FREEZE option to copy_from_file from PostgreSQL 9.3.