Fixed issue:
* fixed issue because of which some of APNS API didn't report error when it has been used with epmty device push token
* copied library into demo projects
* updated library information (debug output in console)
Fixed issues:
* fixed issue with subscription on channel on which presence observation has been disabled before second attempt to subscrive with enabled presence observation (it has been enabled via PNChannel constructor)
* copied library into demo projects
* updated library information (debug output in console)
Merge branch 'origin/hotfix-t179'

Conflicts:
	cocoa/HOWTO/ClientSidePresence/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	cocoa/HOWTO/SimpleSubscribe/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	cocoa/PubNubMacOSTestApplication/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/APNSVideo/demo9/demo9/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/CallsWithoutBlocks/CallsWithoutBlocks/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/ClientSidePresence/PubNubDemo/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/HelloWorld/pubnubDemoExample/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/SimpleSubscribe/PubNubDemo/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/ULSMethods/ULSMethods/libs/PubNub/Core/PubNub.m
	iOS/iPadDemoApp/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/ConnectionIssues/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/PubNubTestBackground/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/iOSUnitTests/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/pubnubBackground/pubnubBackground/libs/PubNub/Core/PubNub.m
Merge branch 'origin/hotfix-t180'

Conflicts:
	cocoa/HOWTO/ClientSidePresence/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	cocoa/HOWTO/SimpleSubscribe/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	cocoa/PubNubMacOSTestApplication/PubNubMacOSTestApplication/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/APNSVideo/demo9/demo9/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/CallsWithoutBlocks/CallsWithoutBlocks/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/ClientSidePresence/PubNubDemo/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/HelloWorld/pubnubDemoExample/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/SimpleSubscribe/PubNubDemo/libs/PubNub/Core/PubNub.m
	iOS/HOWTO/ULSMethods/ULSMethods/libs/PubNub/Core/PubNub.m
	iOS/iPadDemoApp/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/ConnectionIssues/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/PubNubTestBackground/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/iOSUnitTests/pubnub/libs/PubNub/Core/PubNub.m
	iOS/tests/pubnubBackground/pubnubBackground/libs/PubNub/Core/PubNub.m
add test app for subscription
add path