v0.4

Please use this release as a release candidate towards STABLE release of the specification.
Please review for consistency, any weird typos, any general cleanup required, references missing etc.

What's Changed

• specification: Define CoVE function ID namespaces by @sameo in #41
• Updates to address issues 64, 65 (chapter 9) by @rsahita in #66
• Updates to address issue 60 (chapter 6) by @rsahita in #69
• Updates to address issues 52 through 58 (chapter 5) by @rsahita in #70
• Updates to address issues 42 through 50 (chapter 4) by @rsahita in #71
• Updates to address issue 61 (chapter 7) by @rsahita in #68
• Updates to address issues 62, 63 (chapter 8) by @rsahita in #67

Full Changelog: v0.3...v0.4