scripts: allow to skip travis specific parts in travis-tests
scripts: allow to skip travis specific parts in travis-tests

We are going to use this script for testing linux-next.

v2: remove bashism
travis-ci: success for scripts: allow to skip travis specific parts in travis-tests (rev2)
Signed-off-by: Andrei Vagin <74c05afa918858348d6db8037d82fa8124870113@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@virtuozzo.com>

eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu,eabatalov/criu