Fixes #250.
This might have to wait on #226, as mentioned in #250.
Reset the old changelog sections for now, until we can make a decision in #232.
Added a Package@swift-4.2.swift so that Stencil compiles with 4.2 if available (no code changes). 4.2 allows us to define a range of supported Swift versions, which is 👍
Set the Swift version to 4.2 in CocoaPods (Xcode 9 parses it as 4, so no worries)
Fixes #250. This might have to wait on #226, as mentioned in #250.
Package@swift-4.2.swiftso that Stencil compiles with 4.2 if available (no code changes). 4.2 allows us to define a range of supported Swift versions, which is 👍