Bugtool parser

Hi Rob, 

Umm... For all my changes, I was working only on this branch... So you might get multiple files for review - i apologise.. 

Can you look into ackTrackerPlugin.py in particular ? Please review my code added to Class JiraTicket and class HCLSubmission. This is the code to download an attachment. 

Please ignore the class FTPClient - which is work in progress. (Copying to remote ftp server.... )

I plan to send you review request step by step and work on reviews. This would not make it cumbersome for you to review!

Thanks. 
Sagnik