Fix CVE in test deps and lots of small things

What's Changed

• switch to travis by @natefinch in #44
• Update docs, adding Compress setting details by @tbutts in #49
• Fix test timing by @natefinch in #64
• Make default file permissions more restrictive by @JAORMX in #83
• fix a typo by @kangxiaoning in #62
• use 0755 to create new dir by @caibirdme in #68
• cleanup and module support by @glaslos in #77
• Remove dependency on gopkg.in/yaml.v2 by @nikhita in #175

New Contributors

• @tbutts made their first contribution in #49
• @JAORMX made their first contribution in #83
• @kangxiaoning made their first contribution in #62
• @caibirdme made their first contribution in #68
• @glaslos made their first contribution in #77
• @nikhita made their first contribution in #175

Full Changelog: v2.1...v2.2.0