Added advanced sub-query support to has/with modifiers.

Previously, when passing additional data to with/has modifiers it was only possible to do basic 'where' queries. Now possible to run include/exclude queries in addtion.

1.2.23

Added support for passing name as parameter in with/has modifiers. Pr…

…eviously, you'd need to pass an empty array which casues problems when clients are using http_build_query since empty arrays are stripped

1.20 - Support for eager loading and has/whereHas queries.

Added new modifiers to handle eager loading and has queries.

1.2.0 - Switched to semantic versioning

Updated readm and tests.

1.15

Finished off tests.

Added support for objects to be passed to FilterModifier

1.13

Fixed bug with json detection

Allowing null/empty searches

Allowing null searches

Allowing null searches rather than throwing an exception.

Eager loading bug fix

Fixed bug whereby eager loading would not work with select function.

Allow non-existent fields to be passed in when eager loading is being used.

When using eager loading on a query-builder, fields that do not exist will now be ignored rather than throwing an exception. This makes it possible for manual filtering on relationships.

Added search functionality & updated tests.

1.06

Updated readme