Update src/linkedin/mobster/webkitcommunicator.py

Fix for #18
Merge pull request #21 from RiteshMaheshwari/patch-2

Update src/linkedin/mobster/webkitcommunicator.py

Based on my discussion with Ritesh and after code review i am approving this merge request

Question to Arman : We observed that the dictionary was being updated while it was being processed in the callback function. Can you please clarify if you have the information regarding this behavior