> Fix the word boundary handling of vi-eword...
> Provide shell variable $vimode to control VImode.
> If VImode=1, use "_" as the default for $wordchars, to match vi's default.
> Modify c_to_class() to use isword().
> rename e_capitolcase ->e_capitalcase (Luke Mewburn)
> Fix e_capitolcase to e_capitalcase
