using css3 border-radius instead of js library when possible

wise-webapp/src/main/webapp/css/commonOldIE.css

@@ -0,0 +1,15 @@
+#signUpHeader .sb-inner {
+    background-color: white;
+}
+
+#join .sb-inner {
+    background: #9a8fc3;
+}
+
+#join .sb-shadow {
+    background: white;
+}
+
+#join .sb-border {
+    background: #A29BBF;
+}