Issue RESTful-Drupal#456: Only call prepareRow if $row is an array.

commit d569551
Author: Peter Sieg <[email protected]>
Date:   Wed Apr 1 16:44:04 2015 -0400

    Only call prepareRow if $row is an array.

Issue RESTful-Drupal#355: Fix bad HAL+JSON

Squashed commit of the following:

commit 29966be
Merge: ce7eeb2 3ac61a6
Author: David Diers <[email protected]>
Date:   Fri Mar 6 14:12:04 2015 -0600

    Merge branch '7.x-1.x' of github.com:RESTful-Drupal/restful into 355-Bad_Hal

commit ce7eeb2
Merge: 86d5a7d 10e9284
Author: David Diers <[email protected]>
Date:   Thu Mar 5 14:19:18 2015 -0600

    merged upstream

commit 10e9284
Merge: 2b188a4 64c4ba0
Author: David Diers <[email protected]>
Date:   Thu Mar 5 14:17:27 2015 -0600

    Merged in master.

commit 86d5a7d
Author: David Diers <[email protected]>
Date:   Thu Mar 5 14:13:22 2015 -0600

    Resolved single resource issue with _embedded property not nesting at the resource root.

commit fbeb594
Merge: 2b188a4 1f47b49
Author: David Diers <[email protected]>
Date:   Thu Mar 5 13:06:58 2015 -0600

    Merge branch '355-Bad_Hal' of github.com:adaddinsane/restful into 355-Bad_Hal

commit 2b188a4
Author: David Diers <[email protected]>
Date:   Thu Feb 19 09:22:08 2015 -0600

    Check to see if _links is set before declaring.  closes RESTful-Drupal#414

commit 1f47b49
Author: steve.turnbull <[email protected]>
Date:   Wed Jan 14 09:05:09 2015 +0000

    355: Tidy up variables.

commit 31fc533
Author: steve.turnbull <[email protected]>
Date:   Tue Jan 13 16:26:51 2015 +0000

    355: Fix HAL:JSON so that it embeds resources, and in the right place.

Issue RESTful-Drupal#196: Added data provider for variables.

Also adds support for drupal_write_record on DB query.

Revamped documentation.

Issue RESTful-Drupal#290: Allow disabling URL parameters.

Issue RESTful-Drupal#52: Add missing documentation for errors.