Update to session creation procedure

Update to session creation procedure

- Removed --no-consumer and --disable-consumer option because these
options will be obsolete in LTTng Tools 2.2
- Updated commands and dialog boxes for this change
- Updated JUnit tests

Change-Id: Ic89c7af3df98c25ff777eebbe1a7e15785ec91ae
Signed-off-by: Bernd Hufmann <bhufmann@gmail.com>
Reviewed-on: https://git.eclipse.org/r/10590
Tested-by: Hudson CI
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
IP-Clean: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>