Updated store.js to 1.3.14

Pulled from https://github.com/marcuswestin/store.js/blob/v1.3.14/store.min.js.
Package.json updated as per https://github.com/marcuswestin/store.js/blob/v1.3.14/package.json.

Note: Version number on package.json is incorrect on the 1.3.14 tag so I manually changed it.