Merge pull request #1662 from jlipps/master

add ability to set launch timeout from the command line so it can be use...
Readme typo
Merge pull request #1663 from Jonahss/patch-1

Readme typo
requires users to specify their device in their desired capabilities
Merge pull request #1664 from rockbot/master

requires users to specify their device in their desired capabilities (fix #1656)
update the caps.cn.md as the lastest docs
Add the Real Device cn md file