Support Elixir 1.6

What's Changed

• Fix compilation and use on Elixir 1.16 by @fhunleth in #14
• Test on Elixir 1.15/1.16/1.7 and OTP 25/26 by @voltone in #17

Full Changelog: v0.6.2...v0.6.3

v0.6.2

• Declare dependency on :xmerl app (#6)

v0.6.1

• Handle package metadata without a 'description' field

v0.6.0

Enhancements

• Add CPE identification, if known
• Add package description, if available

v0.5.1

Bug fixes:

• Fix UUID format for auto-generated serial numbers

v0.5.0

First public release