Add first-class Array support to Postgres dialect.
added 'prefix' option to Table.prototype.star()
Merge remote-tracking branch 'upstream/master'

Conflicts:
	lib/dialect/postgres.js
	lib/node/valueExpression.js
Add array tests, for both literals and array columns.
Add HSTORE as top-level Postgres function.
Add hstore tests for literals, concatenations, and key access.
Add tests for array concatenation.
Merge pull request #145 from matinm/array-hstore

Add array and Hstore as first-class objects.
Bump version
Merge pull request #143 from tmont/star-prefix

added 'prefix' option to Table.prototype.star()
Bump version