rename context menu items to clarify function
fix paths for include file resolution; set correct toc attributes

- set working directory and base directory so include files can be resolved
- enable toc using toc=preamble, clear toc2 attribute in both cases
- render method is deprecated, use convert instead
Upgrade to 1.5.0-preview.7 with asciidoctorjs-npm-wrapper#0.1.2
Merge branch 'render-fixes' of https://github.com/mojavelinux/asciidoc-preview into mojavelinux-render-fixes
Add include.adoc
Merge branch 'mojavelinux-render-fixes'
Merge branch 'menu-item-names' of https://github.com/mojavelinux/asciidoc-preview into mojavelinux-menu-item-names
Merge branch 'mojavelinux-menu-item-names'
Prepare 0.1.2 release