Misc: Node model: Find nodes by uname (bnc#854039)

Signed-off-by: Tim Serong <tserong@suse.com>
Misc: Use crm_simulate instead of ptest (bnc#854050)

Signed-off-by: Tim Serong <tserong@suse.com>
Misc: hb_report: Catch ArgumentError when parsing hb_report output (bnc#854060)

Signed-off-by: Tim Serong <tserong@suse.com>
Build: Drop ruby 1.8.7 and add ruby 2.0.0 to .travis.yml

Signed-off-by: Tim Serong <tserong@suse.com>