Automatic window arrangement compatibility, automatic title etc.

###  Discussion

@vds2212 

> How could we make it backward compatible?
> What do you mean by "m_strTitle, SetTitle, OnEditRenameTab because of no or limited use" ?

If this question refers to the question "Why remove the manual tab names?" I argue that
* it's the uncommon solution that require justification
* manual tab names are less common than automatic

> What you want the command separator to be ':' instead of '-'

A file or folder name can contain `-`, it's therefore less clear if the delimiter is part of a file or folder name or not.

> What is the benefits of WS_MAXIMIZEBOX ?

It's required for [automatic window arrangement](http://windows.microsoft.com/en-US/windows7/products/features/snap).

>Can you split your patch in 5 sub patch?
>We will review them and accept the one that I have a chance to be merged.
>Maybe should we think about how to make backward compatible but this is probably easy.

This is done