Support of Brew Cask

[starodubcev]

I'd like :-) But I can't now

[Musewhale]

If you know how, just do it!  :D

+5% +5% +5%, great, good idea, i like it, just do it!

[xeroc]

??? There are precompiled dmg files available ..

Brew is only required for devs AFAIK

[abit]

If you know how, just do it!  :D

[21xhipster]

Just want to put it here.
That is very convenient for OS X users to install and update apps using brew. Ethereum supports this, but BitShares not :-(