Fix travis ci suite

[sfgeorge]

Resolve a number of test-related issues regarding development_dependencies and testing environment setup:

Development_dependency fixes:

• [SPEC] Travis-CI: Ensure that coveralls dependencies are still Ruby 1.9 (JRuby 1.7) compatible Note: term-ansicolor and tins (sub-dependencies of coveralls) broke SemVer by cutting off ruby 1.9 support apart from a major release
• [SPEC] Travis-CI: Ensure that guard dependencies are still Ruby 1.9 (JRuby 1.7) compatible Similarly, the listen sub-dependency of guard broke SemVer in this regard as well.
• Hold rake back to < 11.0 for rspec-core's sake Once we upgrade to rspec 3.0+, we can lift this restriction

Environment setup fixes:

• Fix ruby-1.9.3 json dependency issue by using latest stable version of Bundler

Other changes:

• Do not allow rspec-2.7 - Our usage of the rspec api was beyond 2.7
• Test more versions of cruby, jruby and Rubinius
• Switch to container environment - not because we have to, but because we can
• Testing all permutations between (jruby-1.7, jruby-9.0.4.0, jruby-head) X (openjdk7, oraclejdk7, oraclejdk8) Let me know if this is overkill.

Known and expected issues

• All flavors of rubinius are still failing. Based on the install failures for rbx-2 and rbx-3, this appears to be a temporary issue with unavailability of rubinius binaries or travis's consumption of them. Note that the following attempts to pull Rubinius as a binary utterly fail during setup:
  • rvm use rbx-2 --install --binary --fuzzy
  • rvm use rbx-3 --install --binary --fuzzy
• Because the Rubinius install issue appears to be temporary, I have not tucked them under the "allow_failures" section, though the temptation to have a fully passing build in the immediate was great.

[coveralls]

Coverage increased (+5.0%) to 98.716% when pulling 261c32e7f57ac8353effcd2004b5d77625def193 on sfgeorge:feature/fix-travis into e76bd322a0b109ba1307eb9c6085ae97906ec7e2 on benlangfeld:develop.

[sfgeorge]

Awesome, thank you Ben!! =)

[benlangfeld]

Since we can't trust rbx version numbers, I'm happy to make its failure allowed. No-one sane actually uses it anyway.

[sfgeorge]

Sounds good, marking them as allowed and hoping for a green test suite to come through! =)

[coveralls]

Coverage increased (+5.0%) to 98.716% when pulling 13b0dd8a45d500bc8140a235428ac469e6d989a3 on sfgeorge:feature/fix-travis into e76bd322a0b109ba1307eb9c6085ae97906ec7e2 on benlangfeld:develop.

[sfgeorge]

Almost forgot... shall I also include the following key from the adhearsion .travis.yml?

notifications:
  slack:
    secure: Y7EqF/9FY7mca63c1DM7kEr34fNtFclWXJj9vLqVQJwR3rCDZUZSD8DlqHJDwE6KRCCDsSkyV4lihCim+GEM28CRcJir0AEUJhXHvIMckjH7n38W9OGN26RuJGZTapjgCSMOBeq0YpSe6dAnZeRpZRJxsTFtP5ptLD5RRjIMzZM=

[coveralls]

Coverage increased (+5.0%) to 98.716% when pulling 261ec61bdc0215f8810a54597bb7ad7eb28036fb on sfgeorge:feature/fix-travis into e76bd322a0b109ba1307eb9c6085ae97906ec7e2 on benlangfeld:develop.