- Simplify build/version updates by moving MARKETING_VERSION and
CURRENT_PROJECT_VERSION to Config.xcconfig
- Provide Ruby (for fastlane) and Bash (for CI) versions of
xconfig-get/set
- Copy release notes atomically inside the lane to guarantee they are
included in the version commit
- Add -nt to skip the build tag
- Move non-CI scripts to "scripts"
- Use lowercase variables consistently
- Work with relative paths
- Work with environment
- Parametrize Xcode build/version number (move uniq last)