update f-tracking.rst file

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
introduce travis-ci

.travis.yml file derived from https://github.com/steveno/ctags/blob/master/.travis.yml.
is added.

check target is added to Makefile.in.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>