v2.9 - Bump lib versions

• Moya 14 #102
• RxSwift 5.0 #101
• Updates on reactive swift #96
• Added support for swift package manager #100

Updated dependencies + RxSwift example

Updated dependencies and refactored example project.

Swift 4.2 + xcode 10 support

Bumped Object mapper version in order to compile in the xcode beta.

Version 2.6

Update Cocoapods

Updated pod dependencies
Merged some PRs

Version 2.5

Swift 4 Compatibility

Version 2.4.2

Re-added ObservableType extensions for RxSwift usage without Single compliance.

Version 2.4.1

Added support to Moya 9.0

Version 2.4

Added support for ReactiveSwift 2.0

Version 2.3.2

Fixed #59

Version 2.3.1

Loosen up the dependency version and added map context.