Some more potential mistakes and an OpenSCAD syntax error

bitmap/alphabet_block.scad

@@ -5,7 +5,7 @@ http://tonybuser.com
 http://creativecommons.org/licenses/by/3.0/
 */
 
-<bitmap.scad>
+use <bitmap.scad>
 
 // change to any letter
 letter = "A";

bitmap/bitmap.scad

@@ -973,7 +973,7 @@ module 8bit_char(char, block_size, height, include_base) {
 			0,1,0,0,0,0,0,0,
 			0,0,0,0,0,0,0,0
 		], block_size, height, 8);
-	} else 	if (char == "\") {
+	} else 	if (char == "\\") {
 		bitmap([
 			0,0,0,0,0,0,0,0,
 			0,1,1,0,0,0,0,0,

bitmap/height_map.scad

@@ -9,7 +9,7 @@ Can also dynamically run this by passing an array on the command line:
 /Applications/OpenSCAD.app/Contents/MacOS/OpenSCAD -m make -D bitmap=[2,2,2,0,1,3,2,2,2] -D row_size=3 -s height_map.stl height_map.scad
 */
 
-<bitmap.scad>
+use <bitmap.scad>
 
 block_size = 5;
 height = 5;

bitmap/letter_necklace.scad

@@ -4,7 +4,7 @@ Elmo Mäntynen <elmo.mantynen@iki.fi>
 LGPL 2.1
 */
 
-include <bitmap.scad>
+use <bitmap.scad>
 
 // change chars array and char_count
 // OpenSCAD has no string or length methods :(
@@ -46,7 +46,7 @@ module letter(char, block_size, height, hole_diameter) {
 	}
 }
 
-matrix = [["O",  "L", "E", "N", "S",], 
+matrix = [["O",  "L", "E", "N", "S"], 
 		[ "Y", "OE", "N", "Y", "T"]];
 
 union() {

bitmap/name_tag.scad

@@ -5,7 +5,7 @@ http://tonybuser.com
 http://creativecommons.org/licenses/by/3.0/
 */
 
-<bitmap.scad>
+use <bitmap.scad>
 
 // change chars array and char_count
 // OpenSCAD has no string or length methods :(