when cursor at the end of a python line, should have better algorithm to decide how to jump

[redguardtoo]

to jump or not jump
or let user decide how to jump

[quicknir]

Helping a user in the spacemacs gitter, they were having some issues with this. I agree with them that in some places the algorithm is a bit poor; based on what I've seen I think the algorithm is overall arguably worse than just using "simple" (at least it's more predictable). Example:

def foo():
    bar1()
    bar2()

With the cursor on the closing paren of bar2 call, it jumps back up to the d in def. I can live with that, I can see the argument for it. But it also jumps there when the cursor is on the closing paren in the bar2 call. I think this is pretty hard to justify.

At the bare minimum, when you're on a line that's not the end of a python indentation level, evil matchit should have the same behavior as the simpler behavior you usually see in C style languages. Jump to matching delimiter (the usual suspects), or do nothing if not on one.

[redguardtoo]

8a10046 fix python issue (Chen Bin)