runner.rb: colorize

* bootstraptest/runner.rb (exec_test): colorize final messages.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38820 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
test: tty option

* bootstraptest/runner.rb (main): add --tty option to output like
  terminal, for mingw/mswin on cygwin.

* lib/test/unit.rb (Test::Unit::Options#setup_options): ditto.

* sample/test.rb (Progress#initialize): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38821 b2dd03c8-39d4-4d8f-98ff-823fe69b080e