Add Jython 2.7.1b1

plugins/python-build/share/python-build/jython-2.7.1b1

@@ -0,0 +1,13 @@
+require_java
+install_jar "jython-2.7.1b1" "https://repo1.maven.org/maven2/org/python/jython-installer/2.7.1b1/jython-installer-2.7.1b1.jar#c7a05911fed666c8f9df5bdce50bb5dc75482b7f6b1f1dbe433162d94c960ec3" jython
+
+case "$(pypy_architecture 2>/dev/null || true)" in
+"osx64"|"win32" )
+  # Jython does not seem to work properly on OSX/windows unless JAVA_HOME is set
+  if [ -z "${JAVA_HOME+defined}" ]; then
+    colorize 1 "WARNING: "
+    echo "Please ensure that your JAVA_HOME environment variable is set correctly!"
+    echo "See http://bugs.jython.org/issue2346 for details."
+  fi
+  ;;
+esac