Update build.gradle to fix potential security vulnerable (#2483)

Author: YorkShen

android/build.gradle

@@ -19,10 +19,10 @@
 
 buildscript {
     repositories {
+        jcenter {
+            url 'https://maven.aliyun.com/repository/jcenter'
+        }
         mavenLocal()
-        maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
-        mavenCentral()
-        jcenter()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:2.3.3'
@@ -41,18 +41,16 @@ subprojects {
         }
     }
     repositories {
-        mavenLocal()
         if(project.hasProperty('external_repositories')){
             maven {
                 url external_repositories
             }
         }
-        maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
-        mavenCentral()
-        jcenter()
-        maven {
-            url 'https://maven.google.com'
+        jcenter {
+            url 'https://maven.aliyun.com/repository/jcenter'
         }
+        mavenCentral()
+        mavenLocal()
     }
     buildscript {
         dependencies {

android/sdk/build.gradle

@@ -18,14 +18,7 @@
  */
 
 buildscript {
-    repositories {
-        mavenLocal()
-        maven {url 'http://maven.aliyun.com/nexus/content/groups/public/'}
-        mavenCentral()
-        jcenter()
-    }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
         if(!project.disableCov) {
             classpath 'com.vanniktech:gradle-android-junit-jacoco-plugin:0.5.0'
         }

package.json

@@ -11,9 +11,9 @@
     "type": "git",
     "url": "[email protected]:apache/incubator-weex.git"
   },
-  "homepage": "http://weex.apache.org/",
+  "homepage": "https://weex.apache.org/",
   "bugs": {
-    "url": "https://issues.apache.org/jira/browse/WEEX/"
+    "url": "https://github.com/apache/incubator-weex/issues"
   },
   "private": true,
   "keywords": [