0.2.2 (2017-05-21)

New features:

• FEATURE #341:
  Support nested character classes and intersection operation.
  For example, [\p{Greek}&&\pL] matches greek letters and
  [[0-9]&&[^4]] matches every decimal digit except 4.
  (Much thanks to @robinst, who contributed this awesome feature.)

Bug fixes:

• BUG #321:
  Fix bug in literal extraction and UTF-8 decoding.
• BUG #326:
  Add documentation tip about the (?x) flag.
• BUG #333:
  Show additional replacement example using curly braces.
• BUG #334:
  Fix bug when resolving captures after a match.
• BUG #338:
  Add example that uses Captures::get to API documentation.
• BUG #353:
  Fix RegexSet bug that caused match failure in some cases.
• BUG #354:
  Fix panic in parser when (?x) is used.
• BUG #358:
  Fix literal optimization bug with RegexSet.
• BUG #359:
  Fix example code in README.
• BUG #365:
  Fix bug in rure_captures_len in the C binding.
• BUG #367:
  Fix byte class bug that caused a panic.