Rather crude attempt to make things silent again.

patchwork/lock.py:232:13: E741 ambiguous variable name 'l'
patchwork/filters.py:105:9: E722 do not use bare except'
patchwork/filters.py:170:9: E722 do not use bare except'
patchwork/filters.py:352:9: E722 do not use bare except'
patchwork/models.py:344:9: E722 do not use bare except'
patchwork/tests/browser.py:26:1: E722 do not use bare except'
patchwork/tests/test_lock.py:68:9: E741 ambiguous variable name 'l'
patchwork/bin/parsemail.py:852:5: E741 ambiguous variable name 'l'
patchwork/bin/parsemail.py:857:5: E741 ambiguous variable name 'l'
patchwork/bin/parsemail.py:884:5: E722 do not use bare except'
patchwork/views/api.py:25:1: E722 do not use bare except'
patchwork/views/bundle.py:76:17: E722 do not use bare except'
patchwork/views/xmlrpc.py:95:9: E722 do not use bare except'
patchwork/views/xmlrpc.py:127:9: E722 do not use bare except'
patchwork/bin/pwclient:271:5: E722 do not use bare except'
patchwork/bin/pwclient:279:5: E722 do not use bare except'
patchwork/bin/pwclient:357:5: E722 do not use bare except'
patchwork/bin/pwclient:549:9: E722 do not use bare except'
patchwork/bin/pwclient:555:9: E722 do not use bare except'
patchwork/bin/pwclient:600:9: E722 do not use bare except'
patchwork/bin/pwclient:650:5: E722 do not use bare except'
git-pw/git-pw:540:9: E722 do not use bare except'
git-pw/git-pw:555:9: E722 do not use bare except'
git-pw/git-pw:567:9: E722 do not use bare except'
git-pw/git-pw:586:9: E722 do not use bare except'

"except Exception" should be chosen more carefully.

Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>