- Removed old obsolete indentation code
 + Added support for docstrings in function defs
 * Fixed implementation of "print" in python printer. We have to treat
   it specially, because we can't reference __builtins__.print since
   it's a keyword, and we have no Print in the IST
 * Fixed compilation of varargs and kwargs in Call
 * Assert that functions are decorator-less in python printer
 * Fixed output of Delete
 * Fixed lambda (missing parantheses)
 * Fixed output of empty dictionaries
 * Properly fixed Dict output (last fix was a mistake)
 * Fixed use of Global
 + Added support for BoolOp in python printer
 + Added support for decorators in python printer
 + Improved python printer output by ignoring trailing blank lines
 + Added BoolOp IST since a python BoolOp is not (always) a true BinOp