Redefine rspec-mocks method to make our sandboxing work properly.
Merge pull request #1274 from rspec/fix-broken-2-99-build

Redefine rspec-mocks method to make our sandboxing work properly.
Updated travis build scripts (from rspec-dev)
Add gems needed by rbx.
Allow rbx to fail for now.
Merge pull request #1275 from rspec/update-travis-build-scripts-2014-01-27-for-2-99-maintenance

Updates from rspec-dev (2014-01-27)
deprecate older formatter shortcuts
return nil rather than raising when we cant find a callsite
update formatter syntax
Merge pull request #1284 from rspec/deprecate_formatter_shorts

Deprecate older formatter shortcuts
separate the cli deprecation from internal (no call site)
Merge pull request #1272 from rspec/improve_debugger_deprecation

Improve the deprecation for `-d` and `--debugger` slightly
Updated travis build scripts (from rspec-dev)
Merge pull request #1297 from rspec/update-travis-build-scripts-2014-02-08-for-2-99-maintenance

Updates from rspec-dev (2014-02-08)
Allow deprecations to be grouped by an explicit type.
Only verify HTML fixtures on modern rubies.

This still gives us a high level of confidence in the HTML formatter,
while drastically reducing the complexity of the specs. We only require
a single fixture with this method.

I removed some of the textmate coverage, since it was incompatible with
this change and it's going away anyway so I don't care about it.

Backport from RSpec 3.
Merge pull request #1307 from rspec/issue-expectations-348

Allow custom grouping of deprecations
Merge pull request #1308 from rspec/html-hate-backport

Only verify HTML fixtures on modern rubies.
Provide upgrade warning for pending behaviour change.

Includes a backport of `skip` to assist with upgrading.
Deprecate show_failures_in_pending_blocks.