Add BlackBerry 10 support
code formate
add blackberry in type pram while subscribe device
Add BlackBerry 10 example in readme
Add support for subscribe as guest
add code example
Update README.md
Merge pull request #1 from HazemKhaled/subscribeAsGuest

Subscribe as guest
Merge pull request #1 from HazemKhaled/master

Add blackberry 10 support & support subscribe as guest