Add Travis-CI test environment
Run extra tasks on only MRI && >= 1.9.3
Add assert failure messages to some tests.
Add helper assert methods for more consistent and descriptive messages, and for test conciseness.
Fix a variable name.
Merge pull request #27 from otahi/improve_travis_ci_tests

[WIP] Improve travis ci tests
Removing Ruby 1.8 from tests
Merge pull request #29 from keithrbennett/add-assert-messages

Add assert failure messages to some tests.
Simplify Message.getopt, add test.
Remove ree as require_relative not working. Also remove jruby-19mode until we can figure out why NSEC types are not properly decoded and encoded on that platform
Adding online tests (again)
More verbose message for test failure on travis platform
Add test that get_opt returns an OPT that is in the message.
Add Google IPv6 resolvers for IPv6 enabled hosts in tc_dnsruby.rb
doh
Check response given that items could be in any order
Add an OPT record without network transmission.
More mods for multiple Google DNS records under IPv6
Removing jruby-head from build because travs cannot seem to load it. Removing rbx-2 from biuld because travis does not seem to be able to configure it
Merge pull request #28 from keithrbennett/simplify-getopt

Simplify Message.getopt, add test.