added arangodb 1.4.2 ebuild, tested alot on amd64 funtoo testing, added simple init.d script which is pretty much like the systemd unit, added (backported) patch for app-path, added patch which allows the use of system zlib (tested with zlib 1.2.8), added patch which removes some unused targets from v8 build, added use descriptions in profiles/use.local.desc
arangodb-1.4.2.ebuild: added fetch restriction for gentoo mirrors, added another patch which sets the inital configured server binding to localhost instead of any interface