Set name+description in pom.xml since this appears to be the only place to configure these for inclusing into plugin.xml
Add param docs around proxy bits in m2settings download goal.
Configure maven-plugin-plugin for site, disable cobertura which is pulled in from parent and causing failures when building site.
Some other failures too, but at least its generating the maven-plugin docs properly now.
Merge pull request #32 from sonatype/plugin-descriptor-and-help-muck

TRIVIAL: update plugin name/description muck and add help text to proxy params
Merge remote-tracking branch 'origin/master' into nxcm-5194-g-level-md-deployment
NXCM-5194: Fixed wrong references in POM

Some dependencies got G's change, updated
and staging plugin bumped to latest.
NXCM-5194: WIP/ IT

This is WIP, not done yet