[NX-355] HTTP System Settings
[NX-355] Fix max port value
Merge remote-tracking branch 'origin/master' into NX-355-http-settings

Conflicts:
	plugins/rapture/nexus-coreui-plugin/src/main/resources/static/rapture/NX/coreui/app/PluginConfig.js
	plugins/rapture/nexus-coreui-plugin/src/main/resources/static/rapture/NX/coreui/controller/System.js
Merge pull request #457 from sonatype/NX-355-http-settings

REVIEW: [NX-355] HTTP System Settings