Fixed #175 - Disabled button should remove pointer cursor

src/components/button/Button.css

@@ -14,6 +14,10 @@
     -webkit-user-select: none;
 }
 
+.p-button:disabled {
+    cursor: default;
+}
+
 /*button text element */
 .p-button .p-button-text {
     display: block;