0.17: Swift Marches On

Added

• A --toolchain option to specify the Swift toolchain that should be used (#1303). Thanks @tkrajacic!

Improved

• Frameworks will be built for the simulator only on platforms that require bitcode when bitcode is disabled (#1280). Thanks @phatblat!
• Zsh will now autocomplete dependency names from the Cartfile.

Fixed

• Carthage will error on carthage bootstrap <dependency> if dependency doesn’t exist in Cartfile.resolved (#1294). Thanks @mz2!
• Carthage will error on carthage update <dependency> if dependency doesn’t exist in Cartfile (#1344). Thanks @ktakayama!
• carthage archive no longer tries to copy XCTest files with test targets that have "Run" enabled in the build scheme (#1302). Thanks @BernardGatt!

Thank you to @ikesyo for improvements to the codebase! Thank you to @mdiep and @NachoSoto for reviewing pull requests!