feature: support static filepath resolving by options.dynamicPartials,

fix #51

test/tags/include.js

@@ -88,4 +88,14 @@ describe('tags/include', function () {
     return expect(liquid.renderFile('personInfo.html', ctx)).to
       .eventually.equal('This is a person <p>Joe Shmoe<br/>City: Dallas</p>')
   })
+
+  it('should support static filename', function () {
+    var staticLiquid = new Liquid({dynamicPartials: false, root: '/'})
+    mock({
+      '/with.html': 'X{% include color.html shape: "rect" %}Y',
+      '/color.html': 'shape:{{shape}}'
+    })
+    return expect(staticLiquid.renderFile('with.html')).to
+      .eventually.equal('Xshape:rectY')
+  })
 })

test/tags/layout.js

@@ -96,4 +96,13 @@ describe('tags/layout', function () {
     return expect(liquid.renderFile('/main.html')).to
       .eventually.equal('blackredA')
   })
+  it('should support static filename', function () {
+    mock({
+      '/parent.html': '{{color}}{%block%}{%endblock%}',
+      '/main.html': '{% layout parent.html color:"black"%}{%block%}A{%endblock%}'
+    })
+    var staticLiquid = Liquid({ root: '/', dynamicPartials: false })
+    return expect(staticLiquid.renderFile('/main.html')).to
+      .eventually.equal('blackA')
+  })
 })