prepare use rspec replace testunit
remove test unit
StringHelper and Encryptor test
user register test
add database cleanner
test login
rspec test login/nonlogin has error
remove unneeded go file
设计协议
删除旧node数据结构
重新设计节点
remove unneeded controller model
bind + geoip
add port mapping
remove node_type_items
node type
restruct node type
fix nt bugs
node type show
fix repositories bug