[patch] add support of method keyword params

[tocer deng]

Hi all,

I hope the patch is helpful to someone.  the patch is generated  by hg MQ extention, so you can import it if you open MQ extention:

hg  qimport THE_PATCH_FILE

The example for the new feature:

def  method_one($foo, $bar='bar'):
    ul:
        li:
             $foo
        li:
             $bar

method_one('foo')
method_noe('not_foo', 'not_bar')

[Alexander Tsepkov]

Thanks, neat feature, I didn't even think of that. I'll add it this weekend, after testing it against Pyjeon website source code to make sure it doesn't break anything (being regex-based, RapydML can be a bit fragile).