[Chicken-hackers] plain lambdas as syntax transformers

[Felix]

Hello!


I know this is going to be controversial, but I'd like to un-deprecate
the use of plain procedures as syntax-transformers. The way it is
currently implemented, using a procedure can be seen as a simple
default (er-transformer). I find the use of transformer-constructors
clutters up the code, adds unnecessary typing and indentation, and is
more or less meaningless for newbies. 


cheers,
felix