v0.4.0

What's Changed

• Update golang.org/x/net. by @NullHypothesis in #44
• Move must code to new package. by @NullHypothesis in #45
• Add veil-proxy as separate command line tool. by @NullHypothesis in #46
• Simplify and improve Makefile. by @NullHypothesis in #47
• Remove unused file. by @NullHypothesis in #48
• Improve comments. by @NullHypothesis in #49
• Simplify handler and add tests. by @NullHypothesis in #50

Full Changelog: v0.3.3...v0.4.0