What's Changed
* Base64 update by stephengaito in https://github.com/gammazero/pymakeself/pull/9
* Only support python3.x by gammazero in https://github.com/gammazero/pymakeself/pull/13
* Update distribution script by gammazero in https://github.com/gammazero/pymakeself/pull/14
* Fix quoting "'" characters in label.
**Full Changelog**: https://github.com/gammazero/pymakeself/commits/v0.4.0