Merge branch 'master' of https://github.com/VlifeAutoTest/AutoScreenshot

close appium after work finished

modify command line parameters for crawler command

decode according to operation system charset.

remove comments

support jar crawler running

install apk and push files to devices automatically

优化截图脚本

新增判断页面是否存在的方法

修改数据库连接

新增输入法相关截屏

修改case

set default encoding

add log file

update config path to abspath