Git: Improve Push to Gerrit icon

Change-Id: I5ee6d308409eef60a240b89bb10ef35e2d5f1f62
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
BlackBerry: do not load certificate automatically

To prevent the certificate password dialog from appearing when the
BlackBerryKeysWidget is shown(), only request the password and open the
certificate when the user clicks "Open certificate" button.

Task-number: QTCREATORBUG-10948
Change-Id: Ieb4f11735e726be892fbb3cf4e09afe1b9067b04
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
BlackBerry: fix password prompt alignment

Align certificate and csk password prompts according to their parents

Task-number: QTCREATORBUG-10948

Change-Id: I139019b2a5a73f5082a434518c62be97c63574e8
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
BlackBerry: do not show invalid password message

Do not show "Invalid password" dialog when the user has actually pressed
"Cancel" upon prompting for the certificate password or csk password dialog,
and make sure the "overwrite" dialog does not appear after a failed attempt to
request a debug token.

Change-Id: Id9aa78ab3517249df5bd3b4c2d1e0fd2032c3c0b
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>