Log Message:
Update ruby-simplecov to 0.9.1.

0.9.1, 2014-09-21 \ 
([changes](https://github.com/colszowka/simplecov/compare/v0.9.0...v0.9.1))
====================

## Bugfixes

 * In 0.9.0, we introduced a regression that made SimpleCov no-op mode fail on \ 
Ruby 1.8, while
   dropping 1.8 support altogether is announced only for v1.0. This has been fixed.
   See [#333](https://github.com/colszowka/simplecov/issues/333) (thanks (@sferik)

0.9.0, 2014-07-17 \ 
([changes](https://github.com/colszowka/simplecov/compare/v0.8.2...v0.9.0))
====================

**A warm welcome and big thank you to the new contributors \ 
[@xaviershay](https://github.com/xaviershay), \ 
[@sferik](https://github.com/sferik) and especially \ 
[@bf4](https://github.com/bf4) for tackling a whole lot of issues and pull \ 
requests for this release!**

## Enhancements

  * New interface to specify multiple formatters.
    See [#317](https://github.com/colszowka/simplecov/pull/317) (thanks @sferik)
  * Document in the README how to exclude code from coverage reports,
    and that the feature shouldn't be abused for skipping untested
    private code.
    See [#304](https://github.com/colszowka/simplecov/issues/304)
  * Clarify Ruby version support.
    See [#279](https://github.com/colszowka/simplecov/pull/279) (thanks \ 
@deivid-rodriguez)

## Bugfixes

  * Ensure calculations return Floats, not Fixnum or Rational. Fixes segfaults \ 
with mathn.
    See [#245](https://github.com/colszowka/simplecov/pull/245) (thanks to @bf4)
  * Using `Kernel.exit` instead of exit to avoid uncaught throw :IRB_EXIT when
    exiting irb sessions.
    See [#287](https://github.com/colszowka/simplecov/pull/287) (thanks @wless1)
    See [#285](https://github.com/colszowka/simplecov/issues/285)
  * Does not look for .simplecov in ~/ when $HOME is not set.
    See [#311](https://github.com/colszowka/simplecov/pull/311) (thanks @lasseebert)
  * Exit with code only if it's Numeric > 0.
    See [#302](https://github.com/colszowka/simplecov/pull/303)(thanks @hajder)
  * Make default filter case insensitive.
    See [#280](https://github.com/colszowka/simplecov/pull/280) (thanks @ryanatball)
  * Improve regexp that matches functional tests.
    See [#276](https://github.com/colszowka/simplecov/pull/276) (thanks @sferik)
  * Fix TravisCI [#272](https://github.com/colszowka/simplecov/pull/272) \ 
[#278](https://github.com/colszowka/simplecov/pull/278), \ 
[#302](https://github.com/colszowka/simplecov/pull/302)
  * Fix global config load.
    See [#311](https://github.com/colszowka/simplecov/pull/311) (thanks @lasseebert)