Build should respect loglevel

[dccampbell]

Even when using npm install --quiet or npm install --loglevel=error, if a rebuild of this module is triggered it will dump hundreds of lines of gyp and make logs to the console. It's not really possible to control this output since the --verbose flag is being set explicitly by the build script. I feel like verbosity within scripts should probably always remain user-configurable.

node-sass/scripts/build.js

Line 59 in a2ac801

var args = [require.resolve(path.join('node-gyp', 'bin', 'node-gyp.js')), 'rebuild', '--verbose'].concat(

[nschonni]

That's a fair suggestion. I'm not sure if it will be directly fixed in v4, but if we switch from our custom build scripts to node-pre-gyp I think that will solve it too