Support for the Russian letters

[ForNeVeR]

Added the tests and fixed the implementation to work with Russian letters.

I haven't find the best way to encode proper \w in node.js regex, so I've decided to simply hardcode the alphabet in the way all Russian coders used to. Maybe we'll have to find a solution better than regexp.

(Test code contains an excerpt from Dostoyevsky's Crime and Punishment if you're interested.)

This fix will close #28.

[lazdmx]

@kevinsawicki @lee-dohm any chances to get it merged?

[lazdmx]

Guys! Since problem of matching of non-English chars affects many langs I think that it is better to define separate var like charRE with regexp assigned.

charRE =
///
[
  \w                                       # English
  \u0410-\u042F\u0401\u0430-\u044F\u0451   # Russian
]
///

It clarifies a way to add support to other languages.

[lazdmx]

@50Wliu @kevinsawicki , @lee-dohm and others, please do not shelve this PR since it would make life a much easier for many people.

[lazdmx]

кажется мне что ребята подзабили 😄, а до тех пор всем заинтересованным остается только патчить непосредственно в атоме ~/.atom/packages/autoflow/lib/autoflow.coffee как сделал @ForNeVeR тут

[kevinsawicki]

There was a merge conflict that I resolved, this is now on master, thanks so much for fixing this and apologies for the delayed response.

If anyone wants other character sets supported, please open subsequent pull requests that follow the pattern outlined here.

[lazdmx]

nice! thank you @kevinsawicki