Fix issue #261

* Added documentation on SendUrl
* Automatically fix BIS PPG urls (Production and Evaluation) on OverrideSendUrl
Fix issue #261

* Added documentation on SendUrl
* Automatically fix BIS PPG urls (Production and Evaluation) on OverrideSendUrl
Resolve issue 244: After the PushSharp lib (v2.1.2) is idle for 5 mins, the Channel Created and Channel Destroyed events are invoked again and again.

https://github.com/Redth/PushSharp/issues/244
Root cause: After idle timeout, the channel.Cout is zero and the codes
always satisfy the creating channel action. Then idle timeout will
destroy the new created channel and cause the create/destroy cycle.
Merge pull request #267 from alaa9jo/patch-1

Fix issue #261
Merge pull request #274 from JasonGit/master

Resolve issue 244: After the PushSharp lib (v2.1.2) is idle for 5 mins, ...
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
BUG Fix for Apple Silent Push Notifications
Payload must contain something other than only content-available:1,
adding sound="" is a good known solution.
BUG Fix for Apple Silent Push Notifications (Bis, typo got mixed in)
Payload must contain something other than only content-available:1,
adding sound="" is a good known solution.
Update nuget.exe

Fixes hang in VS2012 when opening/building project
Merge pull request #321 from samcook/update-nuget

Update nuget.exe to fix hang building project in VS2012
Added TargetPackageName and NotificationKey

Added TargetPackageName (serialized as "restricted_package_name") and NotificationKey (serialized as "notification_key") to the GCM notification object that will be sent to GCM server
Changed SSL protocol used for APNS from SSL3 to TLS. Using SSL3 was no longer working for the APNS sandbox environment
Changed SSL Protocol from SSL3 to TLS for the APNS Feedback service