Use regular expressions in company-jit.
Use regular expressions in company-jit.

This enables us to ensure we only match whole symbols. Previously, we
would try to complete on Python "foo_from ".

Wilfred/.emacs.d,Wilfred/.emacs.d,Wilfred/.emacs.d,Wilfred/.emacs.d,Wilfred/.emacs.d,Wilfred/.emacs.d,Wilfred/.emacs.d