Log Message:
Update ZenTest to 4.9.5.

=== 4.9.5 / 2013-11-01

* 1 bug fix:

  * Updated require_rubygems_version AGAIN... going too fast. (zzak)

=== 4.9.4 / 2013-09-20

* 2 bug fixes:

  * Expand required rubygems version to be < 2.2
  * Fix parsing of minitest 5 output.