feature: add colors yellow, blue, white for new reporters
feature: add reporter "info"

The info reporter is more colorful, less indented than spec,
shows each "describe" with a begin/end pair (which is useful for
large lists of "it"s).
In contrast to spec it does not show skipped tests.
info reporter: change output of summary
Merge pull request #29 from sbeyer/info-reporter-summary

New reporter info with another reporter summary