twinslash/flow — pull request #4 by EvgenyZhlobo (2012-11-25 11:18:59+00:00)
Title: Fix some issues

Set global class.
I found solution [here](http://stackoverflow.com/questions/4214731/coffeescript-global-variables).

Fix prev function.
We didn't notice difference between `@size()` and `@_size()`.

[Bind functions to the current value of this](http://coffeescript.org/#fat_arrow).