optparse 1.0.0
==============
* Added `description` and `epilogue` arguments to `OptionParser` to allow
  users to add more information to generated help messages
* Slightly alters the generated usage string 
  to match more closely what the Python module does
* No longer exports S4 classes that represent OptionParser and OptionParserOption
* Now requires package getopt (>= 1.19) which has also been moved to 
  Imports field from Depends field in DESCRIPTION
* Now also Suggests stringr package in DESCRIPTION

