Stopped defpsmacro/define-ps-symbol-macro from clobbering special forms.
Stopped defpsmacro/define-ps-symbol-macro from clobbering special forms.

fredericksilva/Parenscript,VincentToups/parenscript,JDReutt/parenscript,vsedach/Parenscript,3b/parenscript,manuel/parenscript