Add docs for failure message as proc object.
Tweak coveralls.

- Remove coveralls rescue.
- Use `wear!` instead of `wear_merged!`.
Fix indentation
Merge pull request #269 from hugobarauna/patch-1

Fix indentation
Merge pull request #257 from phiggins/add_docs_for_proc_failure_message

Add docs for failure message as proc object.
remove array extension
remove public method corrector
remove method owner workaround
remove instance_eval_with_args
document dropping 1.8.6 support
simplecov cannot be required on 1.8.7
Merge pull request #271 from rspec/remove_186_support

Remove 186 support
Merge pull request #268 from rspec/coveralls_tweaks

Tweak coveralls.
reference running example as self
access running example via yielded value
Merge pull request #275 from rspec/fix_accessing_running_example_examples

Access running example without `example`
Run tests using the client mode JVM (or as close as we can get to it)
Merge pull request #274 from rspec/faster_jruby_builds

Run tests using the client mode JVM (or as close as we can get to it)
fix typo
Merge pull request #281 from Nerian/typo

fix typo