quicktabs 7.x-2.0

Quicktabs was accidentally being rendered twice, causing problems for views args
#1103514: Warning: json_encode() [function.json-encode]: recursion detected in drupal_json_encode()
#1153358: leading %23 causing page not found errors for search enginges
#1121816: Strict warning
Remove size 'tiny' from default_tab field as this results in ctools exportables designating it as a boolean value. Add size 'tiny' to hide_empty_tabs field as this ought to be designated as a boolean value
Ensuring that the quicktabs ajax callback will only ever return block content if the block in question has been assigned to the specified Quicktabs instance