Add comment to bug after pushing patches (#3)

After success pushing patch to branch - add comment with some info.
After success pushing all patches to all branches - set status to
MODIFIED.

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
add link to SCM in comment when pushing

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
add simple args parser, fix some bugs

Error: communicate() takes at least 2 arguments (1 given)

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
trivial: add newline after building pkgs msg

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
optimize bugzilla req, fix vars style for BZ msg

Now we will login at initialize Bugzilla class and logout when we need.
Drop '"' from all vars which we will post to BZ msg.

Signed-off-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Add option to skip scratch build validation
Remove useless code
Update copyright, remove authors from py script (see AUTHORS instead)