Update gateway.md

Modifyed properties to reflect the real names in the profile. I.E. now one can copy/paste them and it works.
Update ARQ
Initial Sonatype --> Eclipse Aether change
Fix DepNode compare.
Add dup removal.
"Fix" tests?!
Remove ARQ dep refs.
Fix FAB itests.
Fix pax-exam-common usage.
Fix fab-osgi features.
Exclude Guava, fix poms.
Add missing bundles; interceptor, cdi, el.
Add project-deployer bundle.