Fixes clutchski/coffeelint#85 where spaced_operators did not apply to compound assignment operators
be quiet if -q is set an no errors occurred
corrected indention to 4 spaces
Merge pull request #113 from adcloud/be-quiet

Be quiet if -q is set an no errors occurred
Merge pull request #104 from swang/85_add_compound_assign_to_space_operators

Fixes clutchski/coffeelint#85