Add subscription related operation to Push2App scene.
Add subscription related operation to Push2User scene.
Fix to use GUI.TextArea for output logs.
Reformat code for PushDemo application.
Reformat code again for deleting all of tabs and adding line break around if/switch statement.
Change username prefix for PushDemo application.
Merge pull request #7 from KiiPlatform/pushdemo-fix

Add subscription related operation and fix some issues of PushDemo application.