Fixes #120

Improve sorting and support grouping for bibliographies

See #104

Updates README as proposed at issues #108, #109

Documents that dependent styles need the `dependent/` prefix, and where to find style names.

Documents that you can not use the plugin with the standard Github pages workflow, and provides a workaround.

 * Add group_by option, to group bibliography entries.
 * Add proper names for entry types, and months.
 * Add support for multilevel sorting.

Add global option to allow for raw bibtex entries in the reference blocks and cite_detail pages

Removed tag option for raw bibtex entry.
Added a note in the documentation on the usage of this option.

Change test-case to use the global configuration value instead of the tag option for deciding to output the raw bibtex entry.

1. When the raw bibtex entry should be output
2. When Liquid tags inside the bibtex entry should be executed

See #117

See #118

fixes #112

see #108

Add --offset filter option to accompany --max

Details

Fix typo