Double warnings with SCSS

[dariusrosendahl]

We just used grunt.loadNpmTasks('grunt-notify'); to add automatic errors. This works great, but we first get an empty error and then the real one. This is really annoying if you don't have your terminal in your screen or if you don't use terminal at all. Also, the 2 errors sounds are also really annoying.

Do I need to do something special to avoid the empty error/warning?

[dariusrosendahl]

Only seems to happen when our grunt-contrib-watch is set to spawn: false.

Just found this issue as well: #39