yuanyuan:ajust the hierarchy of wifi
yuanyuanzou:add some note for not support until Android 4.3
yuanyuanzou:add some note for not support until Android 4.3
Merge pull request #4 from yuanyuanzou/develop

yuanyuan:ajust the hierarchy of wi-fi in readme.
fix distutils.spawn import issue in some python distributions
fix multiple matches issue when using up/down/right/left methods
Merge branch 'hotfix/dir-multiple-matched' into develop
fix #5
Merge branch 'release/v0.1.15'