tests: tests for stuff in contrib goes in 'contrib/t'
* t/help-multilib.sh: Move ...
* contrib/t/help-multilib.sh: .. here. Remove a now-obsolete
"FIXME" comment.
* t/multlib.sh: Move ...
* contrib/t/multilib.sh: .. here. Remove a now-obsolete
"FIXME" comment.
* t/parallel-test2.sh: Move ...
* contrib/t/parallel-tests-html.sh: .. here. Remove a
now-obsolete "FIXME" comment.
* contrib/t/local.am: New, basically defining the list of
tests for stuff in 'contrib/'.
* t/list-of-tests.mk, Makefile.am: Adjust.
* .gitignore: Update.
* syntax-checks.mk (xtests): Likewise.
Signed-off-by: Stefano Lattarini <stefano.lattarini@gmail.com>