ci-config-helper: don't extract git snapshot over existing git trees

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
ci-config-helper: be more verbose

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
prserv-import-tool: be more verbose

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Merge remote-tracking branch 'origin/angstrom-v2013.12-yocto1.5'