Documentation: use "state", not "mode"

[Ambrevar]

Evil uses "state" for normal, insert, motion, etc.
This is to avoid confusion with the term "mode" which has a completely different meaning in Emacs.

Let's review the comments and the documentation to make sure there is no confabulation between "state" and "mode".
Non-Evil bindings should be referred to as "Emacs state bindings".

[jojojames]

I took a skim myself and corrected a few places.

[jojojames]

Feel free to close this issue once you've had a chance to look @Ambrevar.

[Ambrevar]

The issue is an easy mistake that might pop up again, so I suggest we keep it around, at least until we go on MELPA.

[jojojames]

I'm going to close this now. Lets re-open create new issues if they crop up or mark it in the rationale.