Merge pull request #225 from ricardotk/wip-filesystem

[FileSystem] Add FileStream fstream support
Bump version to 0.16
[Notification] Add support for background (image)
[Notification] Add support for icon (image)
[Notification] Add support for sub icon (image)
[Notification] Add support for thumbnails (image)
Bump version to 0.17
Merge pull request #226 from ricardotk/wip-notification

[Notification] Add support for Image
[Notification] Check for string "null" while filling notification
[Notification] Add comparison with old image

This will avoid setting the same image
[Notification] Add support for led