Update PG package

Merge pull request #86 from dstevenson1/master

Update node-pg

Migrated to spago

• Migrated from bower to spago
• Attempt adhere to npm packaging standards
• Updated to purescript 0.13.5
• Added import syntax
• Added all sorts of bug fixes

Most importantly this release has a bundled build of the project

v0.0.5: Update bower.json (#48)

Updating dependencies to latest versions.

v0.0.2: Merge pull request #34 from ccap/testing

Fix import deduplication

Reviewed-by: jasonw