Fix missing Date import in Restore.java
Merge pull request #56 from dpogue/patch-1

Fix missing Date import in Restore.java
Revert PR #48

If the trigger date was in the past, the notification will be displayed immediately.
Declare methods are protected instead of public
Declare static fields as protected instead of public
Removed hard coded 4s pause. Callbacks are called after the webview was initialized.
Value for smallIcon is required

Set value of smallIcon to icon by default as it was in the past before the smallIcon could be defined yourself.
Reported by #59
Added docs about custom alert sounds on iOS
Added ongoing option (android only)
Merge pull request #66 from interFace-dk/ongoing_option

Added ongoing option (android only)
Add note about ongoing property in the changelog
Setting launchMode to *singleInstance* isn't necessary anymore
Release v0.7.0beta1
Added new callback registration interface and new callback types
Added the ability to override notifications default properties
Update README.md
Prevent build errors with older iOS/Xcode versions
Update README.md
The message and not the title will be used as the ticker text
Try to get sound playing on iOS