Solved the JSON caching problem for bulk acceptance.
This is done in the same way as it is done in AJAX calls by appending the current time as a GET argument.
Patch by: Mario Ferraro, Lennard de Rijk
Reviewed by: Lennard de Rijk
Coverage: code coverage testing for Python
Coverage.py is a Python module that measures code coverage during test execution.
It uses the code analysis tools and tracing hooks provided in the Python standard
library to determine which lines are executable, and which have been executed.
For more information, see http://nedbatchelder.com/code/modules/coverage.html