click on the link "environment variables" throws exception in case of timeout

``` shell
com.jcraft.jsch.JSchException: java.net.UnknownHostException: test-eskimooo.rhcloud.com
	at com.jcraft.jsch.Util.createSocket(Util.java:341)
	at com.jcraft.jsch.Session.connect(Session.java:192)
	at org.jboss.tools.openshift.express.internal.ui.utils.OpenShiftSshSessionFactory.createSession(OpenShiftSshSessionFactory.java:119)
	at org.jboss.tools.openshift.express.internal.ui.utils.OpenShiftSshSessionFactory.createSession(OpenShiftSshSessionFactory.java:85)
	at org.jboss.tools.openshift.express.internal.ui.job.VerifySSHSessionJob.run(VerifySSHSessionJob.java:47)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.net.UnknownHostException: test-eskimooo.rhcloud.com
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
	at java.net.Socket.connect(Socket.java:579)
	at java.net.Socket.connect(Socket.java:528)
	at java.net.Socket.<init>(Socket.java:425)
	at java.net.Socket.<init>(Socket.java:208)
	at com.jcraft.jsch.Util.createSocket(Util.java:335)
	... 5 more
```
does it worth to be shown at all?