* Support for android version >= O

added option to provide params to create notification channel which is necessary on android version >= O

* Creating notification channel for build>=android O

if device build>=android O, creating a notification channel before notificationManager.build() is called

* using notification builder's new constructor

`NotificationCompat.Builder (Context context)`  was deprecated in API 26.1.0
Using new  `NotificationCompat.Builder(Context, String)` instead.
The second parameter here is notification channel id on which notifiction will be posted.

* Update Notification.java

* For API 26+ : added channel params in options

Added channelParams object inside default options to support passing parameters for notification channel
e.g. a notification object can be made like this:
`notif = { channelParams : { channelID : "channel_id", channelName : "channel_name", description : "channel_description", importance : "notification_importance"}, text: "notif_message", title: "notif_title", sound: "sound_uri"}`

Channels are a way of categorizing your notifications and is necessary to implement on android version >= Android O in order to use notifications. For more info on NotificationChannels you can visit:  https://developer.android.com/reference/android/app/NotificationChannel.html

* Moved channelParams to platform specific options

* changed NoDisplay theme to Translucent
The ClickActivity crashes on Android 6.0.1
See https://web.archive.org/web/20151116170752/https://code.google.com/p/android-developer-preview/issues/detail?id=2353 for solution

* Implement hasPermission for Android (API version >= 22)

Improved docs

Initial commit to activate greenkeeper, changed description to be more
precise.

Add ISSUE_TEMPLATE

Default time extended from 100 to 1000 ms

Quick fix for ios10beta

* assets.parse expects prefix of res://, file://, or http://.

removed unused ‘scope’ variable from un function.

Fix missing {

Force `every:` to be a string on iOS and display a warning if not