Adds Swift Package Manager support

Minor version updates

Release 0.8.3

Release 0.8.2

Merge pull request #108 from adinas23/swift_4.2

Updates with Swift 4.2 support

Update podspec for 0.8.0

Release 0.7.3

Release 0.7.2

Version bump for 0.7.1

Updated podspec for 0.6.3