#665338 by andypost: Fix instances of ctools_context_handler_render that used wrong format for sending arguments.

#654218 by Roi Danton: Improve documentation of dependent.inc to talk about annoyances with checkboxes, radios and fieldsets.

#661332 by yhahn: Allow export.inc to export stdClass objects by exporting them as an array and casting them to an object.

#651852 by coreyp_1: Add caching to content subtypes to save some queries. This means developers will need to clear caches when changing content type code.

#625696 by dmmckenna: Bulk exporter did not define empty array at beginning in code it creates for you.

Added support for context keyword substitutions on override paths in content panes provided by views_content.

#687534: ctools_context_handler_edit_criteria() now does the necessary includes such that access plugins can easily add their own js files to selection criteria forms.

#682900: Fixed array_splice() call to use proper operand types, which was causing fatal errors on PHP 5.3.

Introduce 'export callback' to individual fields in export.inc. Add some documentation to export.html -- much of it borrowed from stella!

#657474: Deleting a custom task designated as the site home page no longer deletes the site_frontpage variable.

Deleting the site_frontpage variable alongside the custom task that had previously owned it worked OK for tasks in the database, but made for an confusing, non-transparent extra step when tasks were exported to code. The deletion logic is now entirely gone, for both actual deletions and reversions to code. Improved helptext on the relevant form widget also makes the process slightly more transparent.