fix some error
Data#40_wangbo:merge
Merge branch 'Data' of github.com:IbpTeam/demo-rio into Data#40_wangbo
Data#40_wangbo:add hashtable lib
Data#40_wangbo add some database table functions
Add contacts lastAccessTime
Merge pull request #64 from v11985/data#40_wangfeng

Add contacts lastAccessTime ->wangyu
OK
fix recent visit bug
Merge pull request #66 from wangyufish/recentbug

contactRecentBug+wangyu->wangfeng
OK
Merge branch 'Data' of github.com:IbpTeam/demo-rio into Data#40_xiquan
Merge pull request #67 from rtty122333/Data#40_wangbo

Data#40 wangbo->xiquan
Merge branch 'Data' of github.com:IbpTeam/demo-rio into Data#40_xiquan
Data#40_xiquan:insert&delete done without test