Code review request - update_mt_download refactor

[GoogleCodeExporter]

Branch name: update_mt_download

Purpose of code changes on this branch:

Refactor to merge code for unpacking font drops from adobe and monotype.

grab_download.py, which formerly was Monotype-specific, was changed to contain 
only the common code used by grab_adobe_download and (the new) 
grab_mt_download.  Code specific to Monotype was moved to grab_mt_download.
grab_adobe_download was refactored to use the shared code

r90e7f7550fd2

When reviewing my code changes, please focus on: the usual

After the review, I'll merge this branch into:
/master

Original issue reported on code.google.com by dougf...@google.com on 24 Apr 2015 at 10:49

[GoogleCodeExporter]

Original comment by jame...@google.com on 4 May 2015 at 5:39

• Changed state: Done