v0.7.0

Changelog

• 8eaa4d6 Only use two parallel threads when building binaries
• 251c543 Update goreleaser config to be compatible with latest version
• ddf0963 ca-bundle now generated by shell script
• fae36e3 complete rewrite: now generates gofwd binary and ca-bundle.crt
• 0703e2b update go modules to latest versions
• 6ac9706 version bump: using new version of external go modules