Update ruby version to 1.9.3-p545

* Update .ruby-version
* Update .travis.yml
* Bump debugger gem for 1.9.3-p545

[#71367862]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Bump ruby to 1.9.3-p547

[#71367862]

Signed-off-by: Michael Fraenkel <fraenkel@us.ibm.com>
Add vsphere spin-up for integration tests