Updates myvn edit, etc. to allow a --private flag

The --private flag can be passed to both myvn to create a private bug.
Tne CC list for private bugs will no longer contain the public mailing list.

Submitted @3631

[Jasvir, 2009-07-31 21:54:02]

http://codereview.appspot.com/96210/diff/1/3
File tools/appspot.py (right):

http://codereview.appspot.com/96210/diff/1/3#newcode83
Line 83: cc_list = difference_of_address_lists(
Ok.  If a already created CL is marked private, the extra recipients on the CC
list would be removed.

http://codereview.appspot.com/96210/diff/1/3#newcode86
Line 86: ','.join(['ben@links.org', 'erights@gmail.com',
We need a separate list right than adding email addresses here.

[MikeSamuel, 2009-07-31 22:22:22]

http://codereview.appspot.com/96210/diff/1/3
File tools/appspot.py (right):

http://codereview.appspot.com/96210/diff/1/3#newcode83
Line 83: cc_list = difference_of_address_lists(
On 2009/07/31 21:54:02, jasvir wrote:
> Ok.  If a already created CL is marked private, the extra recipients on the CC
> list would be removed.

The public group would be removed, but other CCers would not automatically be.

http://codereview.appspot.com/96210/diff/1/3#newcode86
Line 86: ','.join(['ben@links.org', 'erights@gmail.com',
On 2009/07/31 21:54:02, jasvir wrote:
> We need a separate list right than adding email addresses here.

Yep.  Changed and snapshotted.

[Jasvir, 2009-08-03 22:19:26]

LGTM