Remove Ctags (now in Textredux)
Remove theming (now in properties.lua) and update `init.lua`
Remove unsplit functionality
Add margin highlighting of active view
Update docs
Reenable and update `display_filename`
Auto-update docs.
Added ctags back because I don't use textredux.
Fixed bug if buffer is empty
Added support for tabs when stripping white space on the current line.
Added switch_buffer(), snapopen(), and open_recent_file() that automatically resize the width of the dialog to the "width of the window - 100" . This makes the dialogs easier to interact with and maximizes the space.