feat(patch): support PATCH requests

closes #53

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "ajax-form",
-  "version": "1.5.4",
+  "version": "1.6.0",
   "authors": [
     "Ray Nicholus"
   ],

package.json

@@ -17,5 +17,5 @@
     "type": "git",
     "url": "https://github.com/rnicholus/ajax-form.git"
   },
-  "version": "1.5.4"
+  "version": "1.6.0"
 }

test/ajax-form-tests.html

@@ -141,7 +141,7 @@
                 expect(ajaxForm.domReady.bind(typicalForm)).to.throw('Invalid method!');
             });
 
-            it('throws an error if the method is not "get", "post" or "put"', function() {
+            it('throws an error if the method is not "get", "post", "put", or "patch', function() {
                 typicalForm.setAttribute('method', 'head');
                 expect(ajaxForm.domReady.bind(typicalForm)).to.throw('Invalid method!');
             });
@@ -167,6 +167,13 @@
 
                 expect(typicalForm.addEventListener).to.have.been.calledWith('submit');
             });
+
+            it('adds a listener to squelch submit events if the method is "patch"', function() {
+                typicalForm.setAttribute('method', 'patch');
+                ajaxForm.domReady.call(typicalForm);
+
+                expect(typicalForm.addEventListener).to.have.been.calledWith('submit');
+            });
         });
 
         describe('form validation', function() {