Update estore example: define category name as unique
Caching bug was fixed -- secondary key indexes were not updated properly in cache
create() method added to collections
Remove @cut_traceback from @with_transaction decorator inner function
Bug fixed: @decorator_with_params now can wrap not only functions, but any callable
Improved exception message in Enity.get()
Increase datetime precision for SQLite from milliseconds to microseconds
Update version to 0.4.5
Pony ORM 0.4.5 - Bugfix release