Modulo operator is not supported

[vfhrr]

Using modulo operator % in the Scss code:

$my-variable: 5 % 2;

causes this error:

error Please check validity of the block starting from line #1  Fatal

[DanPurdy]

Hi @VladimirPlokhov This is a parse issue with Gonzales-pe our AST. It's fixed in their latest release though which we will be moving up to in 1.6 which is just waiting on them to fix some windows installation issues.

[DanPurdy]

@VladimirPlokhov So this is working for .scss format in sass-lint 1.6 but gonzales still throws a parse error in .sass format, we'll look to fix that soon. I'll create a new issue specifically for .sass format.

#636
DanPurdy/gonzales-pe#6
tonyganch/gonzales-pe#165