0.9.0 - has and snapshot

Features

• ds.record.has( 'recordName', ( error, hasRecord ) => { }) allows to check if a record exists without creating it
• ds.record.snapshot('recordName', (error, snapshot) => {}) allows for one of requests of record data

Bug fixes

• #105 maxMessageSize option prevents message buffer overflow

Upgrades

• Upgraded tests to use jasmine directly, instead of node-jasmine