conn_http解决bug，支持xml
data-json测试用例修复
增加dr-xml模块
解决编译告警
Merge branch 't/support/dr2' into refs/top-bases/t/support/game
Merge commit 'refs/top-bases/t/support/game' into t/support/game
Merge commit 'refs/top-bases/t/svr/env' into t/svr/env