multi-line var asignment indentation

I made this changes some time ago for standard indenter and now merged them with this project.

It has some limitations:
    - you need to use semicolons (it's quite common requirement)
    - you need not to use multi-line variables (like objects, arrays or functions) in this variables' declaration (it's not common, but more readable)

Maybe, it contains some bugs, but I didn't meet them yet.