Version 1.4.0-beta2

Version 1.4.0 (beta2)

Compared to beta1:

• Do not fail when merging empty files (#113)
• Fix version in install-reference mode (#107)
• Update --create-reference-pack mode (#108)
• Reset terminal colors after error for --download-demo mode
• Add --trace argument to all modes

Full Changelog: v1.4.0-beta1...v1.4.0-beta2