支持SSR、升级Vue版本和增加新的icon (#40)

* search component add new style

* update vue version and support ssr

* unit test

* add new icon

* new icon

test/unit/specs/cell.spec.js

@@ -44,7 +44,7 @@ describe('Cell', () => {
     wrapper = mount(Cell);
 
     const eventStub = sinon.stub(wrapper.vm, '$emit');
-    wrapper.simulate('click');
+    wrapper.trigger('click');
 
     expect(eventStub.calledOnce).to.be.true;
     expect(eventStub.calledWith('click')).to.be.true;