Return WP_Error instead of array of empty objects for a revisions permissions error
Remove extra "which" in implementation doc
Fix a copy/paste error in schema doc

Change `date(_gmt)` to `modified(_gmt)` and rewrap.
Set class-jsonserializable.php file mode to 644
Merge pull request #255 from jeremyfelt/file-permissions

Set class-jsonserializable.php file mode to 644.  Closes #255.
Merge pull request #254 from JDGrimes/implementation-grammer

Remove unneeded "which" in implementation doc.  Closes #254.
Merge pull request #253 from JDGrimes/schema-copy-paste

Fix a copy/paste error in schema doc.  Closes #253.
Corrected reference link
Add missing post formats
Merge pull request #258 from danielbachhuber/patch-1

Corrected reference link.  Closes #258.
Merge pull request #260 from danielbachhuber/patch-2

Add missing post formats. Closes #260.
Make sure the type is actually evaluated
Make sure these methods are explicitly identified
Merge pull request #268 from danielbachhuber/patch-4

Make sure these methods are explicitly identified
Merge pull request #266 from danielbachhuber/patch-3

Make sure the type is actually evaluated
Merge branch 'bugfix/properly-handle-revision-perms-error' of git://github.com/tlovett1/WP-API into tlovett1-bugfix/properly-handle-revision-perms-error
Renamed permission check variable in get_revisions method to parent.
Added detail to permission check error message in get_revisions method.
Merge pull request #276 from WP-API/tlovett1-bugfix/properly-handle-revision-perms-error

Return WP_Error instead of array of empty objects for a revisions permissions error.  Closes #276 and #251.
Return an empty array for posts without revisions.