Update lang/pypy to 2.0.1.
* Sqlite3 added as a dependency
* DIST_SUBDIR no longer used as upstream now releases with a proper tarball
* Added ability to translate with pypy running in restricted memory mode
( faster than python2.7 and uses less memory!)
* Added support for pypy modules that use cffi (_sqlite3 and _curses)
Approved by: eadler,bdrewery (mentors, implicit)