[mDNS Browser] Switched to new sockets API
[mDNS Browser] Updated app window creation options
[mDNS Browser] Cleaned event listeners
[mDNS Browser] Removed outdated comment
[mDNS Browser] Updated list of service types
[mDNS Browser] Fixed chrome.sockets.udp.send callback
Merge pull request #233 from GoogleChrome/useNewSocketsAPI

[mDNS Browser] Switched to new chrome.sockets api