MANIFEST.SKIP: add not distributed files
MANIFEST.SKIP: add not distributed files

Add .travis.yml to MANIFEST.SKIP to avoid them being either distributed or
tested in Kwalitee AUTHOR test. Removed bogus `^\..*` to avoid fals positives.
Try to catch all MYMETA.* files with one rule, ignore cover_db and ignore
*.lock created by coverage test.

Signed-off-by: Jens Rehsack <69d49c504a9219a55b8be0f905e8fe3c32ffb57f@netbsd.org>

rehsack/Sys-Filesystem