title: grails 3.0.1 proxy settings
body: <p>I am new to Grails 3.0.1 and wonder how and where to set the correct Proxy settings. I know what my proxy configuration is - IP and port, but don't know where to place.
  I am getting errors like these when trying to run grails command within my helloworld project:</p>
  
  <pre><code>ivo@ivotrisquel:~/grails/projects/helloworld$ grails --stacktrace
  | Error Problem updating profiles from origin git repository (NOTE: Stack trace has been filtered. Use --verbose to see entire trace.)
  org.eclipse.jgit.api.errors.TransportException: https://github.com/grails/grails-profile-repository: cannot open git-upload-pack
      at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:139)
      at org.grails.cli.profile.git.GitProfileRepository.fetchAndRebaseIfExpired(GitProfileRepository.groovy:140)
      at org.grails.cli.profile.git.GitProfileRepository.createOrUpdateRepository(GitProfileRepository.groovy:109)
      at org.grails.cli.profile.git.GitProfileRepository.getProfile(GitProfileRepository.groovy:56)
      at org.grails.cli.GrailsCli.initializeProfile(GrailsCli.groovy:347)
      at org.grails.cli.GrailsCli.execute(GrailsCli.groovy:192)
      at org.grails.cli.GrailsCli.main(GrailsCli.groovy:99)
  Caused by: org.eclipse.jgit.errors.TransportException: https://github.com/grails/grails-profile-repository: cannot open git-upload-pack
      at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:524)
      at org.eclipse.jgit.transport.TransportHttp.openFetch(TransportHttp.java:309)
      at org.eclipse.jgit.transport.FetchProcess.executeImp(FetchProcess.java:136)
      at org.eclipse.jgit.transport.FetchProcess.execute(FetchProcess.java:122)
      at org.eclipse.jgit.transport.Transport.fetch(Transport.java:1115)
      at org.eclipse.jgit.api.FetchCommand.call(FetchCommand.java:130)
      ... 6 more
  Caused by: java.net.ConnectException: Connection timed out github.com
      at org.eclipse.jgit.util.HttpSupport.response(HttpSupport.java:175)
      at org.eclipse.jgit.transport.TransportHttp.connect(TransportHttp.java:475)
      ... 11 more
  | Error Problem updating profiles from origin git repository
  </code></pre>