Fix CI failures.

Fix CI failures.

This branch tries to fix current CI failures:
a BadStatusLine exception is raised in ie due
to a disconnection caused by the element.click()
call. Subsequent tests in the same testcase fail
as well, because the driver is no longer alive. 
AFAICT this is a new weird ie behavior:
added a workaround to fix that.

Our test messages are now printed to stderr:
I'd like to see if this fixes the Jenkins
output, that seems quite confusing to me.

https://code.launchpad.net/~frankban/juju-gui/ci-deploy-failure/+merge/168966

(do not edit description out of merge proposal)

[frankban, 2013-06-12 14:39:17]

Please take a look.

[matthew.scott, 2013-06-12 14:57:12]

LGTM, thanks for finding a work around.  I'm not a fan of having to do it, but
it's good to have a fix.

[gary.poster, 2013-06-12 15:58:36]

LGTM.  Thank you very much.

[frankban, 2013-06-12 16:04:43]

*** Submitted:

Fix CI failures.

This branch tries to fix current CI failures:
a BadStatusLine exception is raised in ie due
to a disconnection caused by the element.click()
call. Subsequent tests in the same testcase fail
as well, because the driver is no longer alive. 
AFAICT this is a new weird ie behavior:
added a workaround to fix that.

Our test messages are now printed to stderr:
I'd like to see if this fixes the Jenkins
output, that seems quite confusing to me.

R=matthew.scott, gary.poster
CC=
https://codereview.appspot.com/10049046

[frankban, 2013-06-12 16:11:39]

Thank you both for the reviews.