Add support for http proxy exception hosts
Add support for http proxy exception hosts

Added new --noproxy parameter to add-proxy script which value is setted as the
system property http.nonProxyHosts supported by standard library.

clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core,clockworkorange/grails-core