Add calendar widget support for timeline fields. Fix docstring typo in soc.views.models.timeline module. Add timeline edit template which loads necessary javascript files for datetimepicker widget.
Patch by: Pawel Solyga
Review by: to-be-reviewed
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