[ANN] sexp_processor 4.6.0 Released

sexp_processor version 4.6.0 has been released!

* home: <https://github.com/seattlerb/sexp_processor>
* rdoc: <http://docs.seattlerb.org/sexp_processor>

sexp_processor branches from ParseTree bringing all the generic sexp
processing tools with it. Sexp, SexpProcessor, Environment, etc... all
for your language processing pleasure.

Changes:

### 4.6.0 / 2015-05-28

* 2 minor enhancements:

  * Extended generate_test to deal with 19 and up.
  * Extended pt_testcase.rb so add_19tests means 19 and up.

* 1 bug fix:

  * Added and normalized tests to deal with canonicalized block args from ruby_parser.