Set up CI with Azure Pipelines

README update

Added Swift version to Pod spec file

Version up t0 1.1.1

Updated editor UI

- Converted code to Swift 4.2

Version up to 1.1.0

Added Launchscreen storyboard

Converted to Swift 4

Merge pull request #15 from knutigro/swift-3

Merge remote-tracking branch 'origin/master' into swift-3

Merge pull request #14 from benskill/master

Changed property access control to public

Convert syntax to Swift 3.0 and X-code 8

Converted to new Swift 2.2 Selector syntax