Added functions blur, median-blur, bilateral-filter, remap, size-from-point, size-assgn-to, display-overlay. Made mat creation functions mat-typed, mat-value, mat-data and mat to all use the same name, mat. Added step1, elem-size, elem-size1, addweighted. Fixed mat-type and abs. Added a new Garbage Collection system file(gc.asd) and module(gc). All existing functions and all funtions from now on that need to be GC, can be finalized by appending a gc: or :t to the begining of the function name e.g gc:mat. I added a few examples for the finalizers in examples.lisp. Still 1 memory leak in the &optional params. I should fix that in a couple of days..other wise memory management is perfect in this library save for a few examples...This library is getting really fun to use..