config command: fix description

was showing Manager doctstring
fix logging info
frontend: remove references to old breadcrumb system
js: missing semicolons
move base.html template to abilian_base.html, so that application can just extend it from base.html
don't init typeahead if no datasets
* abilian/web/templates/widgets/render_ajax_table.html: use Abilian.fn.onAppInit
* abilian/web/templates/widgets/tabular_fieldlist_widget.html: remove useless span1 class
fix m_field macro for checkboxes
* abilian/web/templates/widgets/render_for_edit.html: use m_field macro
* abilian/web/templates/abilian_base.html: enclose main/content in a col-12
add 2 config variables: LOGO_URL, FAVICO_URL

applications can customize logo used in templates without overriding
default templates. Default config uses abilian.web.nav.Endpoint
* abilian/web/frontend.py: register entity default view
widgets: fix table markup
* abilian/web/frontend.py: add breadcrumb items
fix reindex command