Merge pull request #9 from etcinit/nucleus-import

Import some useful classes from Nucleus

Validate property might be null or model

Stricter model tests (#8)

This checks your models $relations are defined and covered

Use app instead of mockApp (#7)

Adds version bump command

Add static method access trait (#5)

ModelTestTrait tests loading a relationship, expecting exception is n…

…ot thrown. (#4)

Allow overriding bindings (#3)

Merge pull request #2 from sellerlabs/mark/enum-validation-rule

Enum ValidationRule