v0.2.0

[0.2.0]

Changed

• Renamed Error_ to RegexpError, and renamed field data to source_fragment.
• Renamed Engine to Regexp.
• Renamed MatchResult::group to MatchResult::get.
• Replaced MatchResult::group_by_name with MatchResult::results that returns a whole Map.
• MatchResult::results now returns an Array instead of Iter.
• Regexp::group_names now returns an Array instead of Iter.
• Replaced MatchResult::rest with Regexp::execute_with_remainder.