增加在线检查最新版本功能

web/views/@default/settings/updates/index.html

@@ -0,0 +1,25 @@
+{$layout}
+
+<div class="ui margin"></div>
+<form class="ui form">
+    <table class="ui table definition selectable">
+        <tr>
+            <td class="title">当前已安装版本</td>
+            <td>v{{version}}</td>
+        </tr>
+        <tr v-if="isStarted">
+            <td>最新版本</td>
+            <td>
+                <div v-if="isChecking">
+                    <span class="blue">正在连接服务器检查更新...</span>
+                </div>
+                <div v-if="!isChecking">
+                    <span class="green" v-if="result.isOk">{{result.message}}<span v-if="result.hasNew">：<br/><a :href="result.dlURL">下载地址：{{result.dlURL}}</a> </span></span>
+                    <span class="red" v-if="!result.isOk">{{result.message}}</span>
+                </div>
+            </td>
+        </tr>
+    </table>
+
+    <button class="ui button primary" type="button"  @click.prevent="start">开始检查</button>
+</form>

web/views/@default/settings/updates/index.js

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+Tea.context(function () {
+	this.isStarted = false
+	this.isChecking = true
+	this.result = {isOk: false, message: "", hasNew: false, dlURL: ""}
+
+	this.start = function () {
+		this.isStarted = true
+		this.isChecking = true
+
+		this.$delay(function () {
+			this.check()
+		}, 1000)
+	}
+
+	this.check = function () {
+		this.$post("$")
+			.success(function (resp) {
+				this.result = resp.data.result
+			})
+			.done(function () {
+				this.isChecking = false
+			})
+	}
+})