Add Jython 2.7 Beta 3 (fixes #223)

This release of Jython requires JDK 7 or above

plugins/python-build/share/python-build/jython-2.7-beta3

@@ -0,0 +1,5 @@
+require_java
+install_jar "jython-2.7-beta3" "http://search.maven.org/remotecontent?filepath=org/python/jython-installer/2.7-b3/jython-installer-2.7-b3.jar" jython ez_setup
+# pip (>= 1.3) does not work properly since it uses HTTPS for downloads
+# * https://github.com/yyuu/pyenv/issues/15
+install_package "pip-1.2.1" "https://pypi.python.org/packages/source/p/pip/pip-1.2.1.tar.gz#12a9302acfca62cdc7bc5d83386cac3e0581db61ac39acdb3a4e766a16b88eb1" python