Fixed minor errors.

Added semicolon on line 53, and replaced "!=" with "!=="

Author: dmtrmrv

src/js/jquery.swipebox.js

@@ -50,7 +50,7 @@
 
         $.swipebox.extend = function (){
             return ui;   
-        }
+        };
 
 		plugin.init = function() {
 
@@ -556,7 +556,7 @@
 
 				if ( index === 0 ) {
 					$( '#swipebox-prev' ).addClass( 'disabled' );
-				} else if ( index === elements.length - 1 && plugin.settings.loopAtEnd != true) {
+				} else if ( index === elements.length - 1 && plugin.settings.loopAtEnd !== true) {
 					$( '#swipebox-next' ).addClass( 'disabled' );
 				}
 			},