resolves #534 handle callout marks properly when using CodeRay
resolves #529 add inline icon macro
fix syntax error in erb
Merge pull request #535 from mojavelinux/callout-fixes

resolves #534 handle callout marks properly when using CodeRay
fix table valign classes, no underline on image link
resolves #540 enable toc & numbered by default in DocBook backend
resolves #508 lowercase attribute names passed to API
use iconfont-cdn as complete URI
Merge pull request #543 from mojavelinux/lowercase-attributes

resolves #508 lowercase attribute names passed to API
Merge pull request #537 from mojavelinux/inline-icon-macro

resolves #529 add inline icon macro
Merge pull request #542 from mojavelinux/docbook-default-settings

resolves #540 enable toc & numbered by default in DocBook backend