add wechat payment API support in php sdk and js sdk.
This fixes #83 之前的有疏忽

之前有疏忽，之前微信是返回errmsg给token的，现在变成了redirect_url
修复了登陆时出错

登陆页面返回的json改变了
if ($result['ErrCode']!=0) return false; 改为 if ($result['base_resp']['err_msg']!='ok') return false;
preg_match("/token=(\d+)/i",$result['ErrMsg'],$matches); 改为 preg_match("/token=(\d+)/i",$result['redirect_url'],$matches);
Update Wechatext.class.php
Merge pull request #86 from ys21426/patch-1

修复了登陆时出错
Merge pull request #85 from leeeboo/patch-3

This fixes #83 之前的有疏忽
fix wechatext login bugs and edit README
Update wechat.class.php

getRevEventGeo()用户同意上报地理位置后，每次进入公众号会话时，都会在进入时上报地理位置，或在进入会话后每5秒上报一次地理位置,获取用户地理位置信息
Merge pull request #87 from ymlluo/patch-1

add Geo event report
add getRevEventGeo
fix createPackage partnerkey param
Update snoopy.class.php
Merge pull request #97 from Brooooooklyn/patch-1

Update snoopy.class.php fixed wechatext login error
增加服务号多客服消息记录获取
Merge pull request #99 from involvements/master

增加服务号多客服消息记录获取
增加
获取多客服在线客服接待信息
获取多客服客服基本信息
转发多客服消息（指定客服）
Merge pull request #103 from involvements/master

增加多客服相关接口功能
Update wechatext.class.php

更新获取头像
Merge pull request #107 from dlairetang/patch-1

更新获取头像 url
Merge pull request #1 from dodgepudding/master

merge from dodgepudding