fixed error including directories classes and help in the css file list

generator/css/icons.css

@@ -344,7 +344,6 @@
 .icon-circular-sawblade { background-image: url(../img/circular-sawblade.png);}
 .icon-city-car { background-image: url(../img/city-car.png);}
 .icon-clapperboard { background-image: url(../img/clapperboard.png);}
-.icon-classes { background-image: url(../img/classes);}
 .icon-claw-hammer { background-image: url(../img/claw-hammer.png);}
 .icon-claw-slashes { background-image: url(../img/claw-slashes.png);}
 .icon-claw-string { background-image: url(../img/claw-string.png);}
@@ -839,7 +838,6 @@
 .icon-hell-crosses { background-image: url(../img/hell-crosses.png);}
 .icon-helmet-head-shot { background-image: url(../img/helmet-head-shot.png);}
 .icon-helmet { background-image: url(../img/helmet.png);}
-.icon-help { background-image: url(../img/help);}
 .icon-help { background-image: url(../img/help.png);}
 .icon-hexagonal-nut { background-image: url(../img/hexagonal-nut.png);}
 .icon-hidden { background-image: url(../img/hidden.png);}