Fixed leaking handles in PushServiceBase.DoChannelWork

Added mjethwa's fix for leaking WaitHandles in
PushServiceBase.DoChannelWork
Update WindowsPhoneNotification.cs

! Fixed the &amp; and end of navigationline bug. As the "paramValue" wasn't overwritten, the value was never replaced
Updated NuGet packages
Merge pull request #282 from robbcolonthree/master

Fixed leaking handles in PushServiceBase.DoChannelWork
Merge branch 'master' of https://github.com/Redth/PushSharp

# By Robb
# Via Jon Dick (1) and Robb (1)
* 'master' of https://github.com/Redth/PushSharp:
  Fixed leaking handles in PushServiceBase.DoChannelWork
Reduce log verbosity for channel scale monitoring.  Fixes #256
Added more specific check for Passbook certificate in case bypassing the cert validation is not done… Thanks to #263
Merge pull request #287 from pazcaldj/patch-1

Update WindowsPhoneNotification.cs
Merge remote-tracking branch 'redth/master'