add changelog entry for new Swift 2.2 types
add changelog entry for new Swift 2.2 types

Kapeli/jazzy,agentk/jazzy,1ec5/jazzy,agentk/jazzy,agentk/jazzy,1ec5/jazzy,pcantrell/jazzy,pcantrell/jazzy,Kapeli/jazzy,realm/jazzy,Kapeli/jazzy,PSPDFKit-labs/jazzy,PSPDFKit-labs/jazzy,realm/jazzy,pcantrell/jazzy,1ec5/jazzy