Add parentheses to java2py.py

```
Traceback (most recent call last):
  File "\python\3.3.2\scripts\java2py-script.py", line 9, in <module>
    load_entry_point('pyjs==0.8.2', 'console_scripts', 'java2py')()
  File "\python\3.3.2\lib\site-packages\setuptools-1.4.1-py3.3.egg\pkg_resources.py",
 line 357, in load_entry_point
  File "\python\3.3.2\lib\site-packages\setuptools-1.4.1-py3.3.egg\pkg_resources.py",
 line 2394, in load_entry_point
  File "\python\3.3.2\lib\site-packages\setuptools-1.4.1-py3.3.egg\pkg_resources.py",
 line 2108, in load
  File "\pyjs\pyjs\contrib\java2py.py", line 156
    print txt, pre
            ^
SyntaxError: invalid syntax
```