Add log_function decorator and delete method to pykronos
Add log_function decorator and delete method to pykronos

Summary: Also changes all other methods to expect a `namespace` keyword argument.

Reviewers: marcua

Reviewed By: marcua

Differential Revision: http://phabricator.locu.com/D3362

Locu/chronology,Locu/chronology,Locu/chronology,Locu/chronology,Locu/chronology