fix for test "should remove second row inside the buffer when min/max indicies are set"

Author: dhilt

src/modules/buffer.js

@@ -104,7 +104,7 @@ export default function ScrollBuffer(elementRoutines, bufferSize) {
     },
 
     decrementMinIndex() {
-      if(buffer.maxIndex-- === buffer.maxIndexUser) {
+      if(buffer.maxIndex-- <= buffer.maxIndexUser) {
         buffer.maxIndexUser--;
       }
     },

test/PaddingsSpec.js

@@ -250,7 +250,7 @@ describe('uiScroll Paddings spec.', () => {
               outside && expect(getTopPaddingHeight(viewport)).toBe(initialTopHeight - itemHeight * 1);
 
               !outside && scrollBottom(viewport, MAX);
-              //expect(getBottomPaddingHeight(viewport)).toBe(0); // todo dhilt : needs to be fixed
+              expect(getBottomPaddingHeight(viewport)).toBe(0); // todo dhilt : needs to be fixed
 
               scrollTop(viewport);
               expect(getTopPaddingHeight(viewport)).toBe(0);