Add baseUrl property to generated output body (#71)

Issue #53 raises concern that the generated output contains neither host
nor basePath. This commit adds basePath to the top of index.html, just
before info.version.

Both the location of basePath and the continued absence of host were
inspired by the current format of Swagger UI (2.0), with basePath and
info.version colocated and host never being displayed.

Issue #53: 'Missing fields'
#53

.gitignore

@@ -1,4 +1,5 @@
+.idea
 *.iml
 node_modules
 target
-test-output
+test-output

handlebars/partials/base/body.hbs

@@ -4,7 +4,7 @@
 
 --}}
 <h1>{{info.title}}</h1>
-<p class="sw-info-version">Version: <span>{{info.version}}</span></p>
+<p class="sw-info">{{#if basePath}}Base URL: <span class="sw-info-basePath">{{basePath}}</span>, {{/if}}Version: <span class="sw-info-version">{{info.version}}</span></p>
 <p>{{md info.description}}</p>
 
 {{#if consumes}}

less/theme.less

@@ -163,7 +163,7 @@ span.sw-default-value-header {
   font-weight: bold;
 }
 
-.sw-info-version {
+.sw-info {
   font-weight: bold;
   span {
     font-family: monospace;

test/info-object/info-object-spec.js

@@ -23,11 +23,16 @@ describe('The info object should', function () {
   })
 
   it('cause to render the API version.', function () {
-    expect(context.$('p.sw-info-version').text()).to.contain('Version:')
-    expect(context.$('p.sw-info-version > span').text()).to.contain('1.0.0')
+    expect(context.$('p.sw-info').text()).to.contain('Version:')
+    expect(context.$('p.sw-info > span.sw-info-version').text()).to.contain('1.0.0')
+  })
+
+  it('cause to render the Base URL.', function () {
+    expect(context.$('p.sw-info').text()).to.contain('Base URL:')
+    expect(context.$('p.sw-info > span.sw-info-basePath').text()).to.contain('/v1')
   })
 
   it('cause to render a description.', function () {
-    expect(context.$('p.sw-info-version + p + p').html()).to.contain('Description is present.')
+    expect(context.$('p.sw-info + p + p').html()).to.contain('Description is present.')
   })
 })

test/info-object/swagger.json

@@ -5,6 +5,7 @@
     "version": "1.0.0",
     "title": "API title"
   },
+  "basePath": "/v1",
   "paths": {
     "/": {
       "get": {