Added testing in JRuby for Travis.
[vcloud_director] Mocking for tasks.
[vcloud_director] strftime not iso8601 for ruby 1.8.7
[vcloud_director] Consistent usage of ensure_list! in get_disk.
[vcloud_director] Fix ruby 1.9-isms in media_tests.
Merge pull request #2302 from nosborn/vcloud_director_task_mocking

[vcloud_director] Mocking for tasks.
Don't load a couple MRI-only development dependencies on JRuby.
Temporary hack around #2279 to get fog loading on JRuby.

The plan is to get things largely building in JRuby and then tackling #2279 separately.
Added logging message for JRuby users to know they're at a disadvantage.
Merge pull request #2315 from nirvdrum/jruby_fixes

JRuby fixes.
Merge pull request #2312 from nirvdrum/add_jruby_to_travis

Added testing in JRuby for Travis.
Auto-merge remote-tracking branch 'upstream/master'