Misleading error message when using citation marks in the REPO_PATH in windows about boar HOT 3 OPEN

Yup, a quite embarrassingly obvious bug. Thanks!

Wait... Actually, turns out that the "set" command uses the entire string to 
the right of the equal sign, including any citation marks. 

Hence, if you replace 

REPO_PATH="c:\path\to\your\repository"

with

REPO_PATH=c:\path\to\your\repository

then, it works. Windows is weird... So, not really a bug in Boar. Still, 
probably a common mistake in DOS. I'll leave this bug as an open minor, and add 
some kind of helpful error message.

Thank you for looking into it. The reason I use citation marks was that I had 
space in path name to the repository and it felt like correct thing to do. Even 
Command prompt in Win7 does add them automatically.

Strange is that, as you noted yourself, that when setting env. variable using 
set command it take whole string until end of line. This means also all spaces 
in path to repository.

-r-