Improvements

* Add support for specifying short and bundle versions separately in `resign`
* Add support for long options in `resigh.sh`
* Add option to specify entitlements (-e, --entitlements) or autodetect them
* Set `AppIdentifierPrefix` in Info.plist during `resign`
* Improve `resign` usage method
* Huge thanks to @mgrebenets for many contributions to `resign`

https://github.com/fastlane/sigh/releases/tag/1.7.0
