update live ebuild

Package-Manager: portage-2.2.8-r1
added ebuild for VisIt 2.7.3
added repo_name in metadata
added a travis repoman check
updated for travis ci
update live ebuild

Package-Manager: portage-2.2.8-r1
Merge branch 'master' of git+ssh://git.overlays.gentoo.org/proj/sci