Compile a sass file (and dependencies) into a single css file.

def compileSass(sassPath):
    '''
    Compile a sass file (and dependencies) into a single css file.

    '''
    cssPath = os.path.splitext(sassPath)[0] + ".css"
    # subprocess.call(["sass", sassPath, cssPath])
    print("Compiling Sass")

    process = subprocess.Popen(["sass", sassPath, cssPath])
    process.wait()