Update README.md

Merge pull request #85 from snipsco/fix-swift-5

Update README.md

Update .travis.yml to build for iOS x86_64 and arm64, macOS and lint the podspec

Opt-out tests that depends on a connection

Remove provider_crendentials.json from xcodeproj

Fix Swift5 warnings

Move linking instruction into modulemap instead of podspec

Remove Result dependency

Remove ReactiveSwift subspec

Remove deprecated .swift-version file

Merge pull request #83 from mpdifran/swift5

Update Travis to use xcode10.2

Remove Result submodule

Update tests to build