Treat single-character capital names as class instead of constant

[uranusjr]

Currently, single-character words are highlighted like ALL_CAPS_NAMES, but in practice they are usually class names instead, such as Q and F objects in Django.

It might be better to change the highlighting rule of constants to require at least two characters instead. (Or even two uppercase characters because names like _N also look like a class. This might just be me though.)

[vpetrovykh]

Yeah, valid point. It really boils down to what is the more common use-case. However, we still plan on trying to make the highlighter more configurable and this may be a good configuration option to add. In the mean time I'll keep this thread open to let anyone else who might have an opinion on the matter chime in.

[1st1]

Resolved as part of #42. Closing this issue now.