Update meta.xml to be released, not experimental
Squashed commit of the following:

commit 576e67d31a5785dcff36eb57110a7c358a69a0c2
Author: designermonkey <john@designermonkey.co.uk>
Date:   Mon Aug 26 00:31:52 2013 +0100

    Bump version and release notes

commit 04ef353487bdf4dac6318d76bf5985b86836cb1d
Author: designermonkey <john@designermonkey.co.uk>
Date:   Mon Aug 26 00:30:18 2013 +0100

    Index page values now linkable

commit 7ba168bf9c82eea7ccaca84841525fb7a04453b0
Author: designermonkey <john@designermonkey.co.uk>
Date:   Mon Aug 26 00:30:00 2013 +0100

    Show associations for pages

commit cf23ef1d8ee80a53c1c12b62f2b9311ac1f5bdbd
Author: designermonkey <john@designermonkey.co.uk>
Date:   Sun Aug 25 22:55:55 2013 +0100

    Fix mistake from previous commit

commit 772c9fb6bb145849310255a7f865eeefcc7a87d9
Author: designermonkey <john@designermonkey.co.uk>
Date:   Sat Aug 24 22:06:59 2013 +0100

    Added parent ID to output if page has parent

commit 4b9580c8d8689f97b5c67ab7d6129813d97f0d4c
Author: designermonkey <john@designermonkey.co.uk>
Date:   Sat Aug 24 21:45:56 2013 +0100

    Added sorting as the Pages admin area
Fix for when data contents are single values, and array is required
#10 Fix sortorder when using limited page types
Revert change to link pages from entry index
Fix sorting so that it respects sorting from the Pages index. Closes #15
Bump to 1.6.2
Added data-interactive on ul for tags. Fixes #17
use prepareTextValue instead of prepareTableValue
Implementing uniqueness. Re: #7
Version 1.7.0
Make uniqueness works for real
Removed release infos and added some descriptions
Make sure SQL query contains only ints
Display empty choice only when optional
Disable already selected pages when unique is enforced in the publish edit/new page
Implemented filtering used pages in toggle states

When unique values is on, the toggle states now only returns unused pages for the field.
In order to acheive this, I've move the current implementation of toggleStates into a private method to preserve the current behavior and also be able to customize toggle states.

This change also makes sure to cache field data to avoid repeating the same SQL query if possible, since the data can be shared across multiple entries for the same field (and across field instance too)
Merge pull request #18 from DeuxHuitHuit/1.7

Version 1.7 into integration