[TIMODOPEN-270] Docs ti.cloud: adding PushNotification methods queryChannels and showChannels
[TIMODOPEN-291] Cloud Docs: fixing typos
Merge branch 'master' of https://github.com/appcelerator/titanium_mobile into TIMODOPEN-270

Conflicts:
	apidoc/Titanium/Cloud/PushNotifications/PushNotifications.yml
Merge pull request #4954 from jonalter/TIMODOPEN-270

[TIMODOPEN-270] Docs ti.cloud: adding PushNotification methods queryChan...