Removed/commented out/tagged some unused local variables.

Added a JUnit test for the new Trie that fails at present since the Trie is
case-insensitive.  Running JUnit tests is not something our build system
knows about at present, but Eclipse 2.0 makes it very easy.

Fixed a few compiler errors due to imports I'd forgotten.

source/org/thdl/tib/text/TibTextUtils.java

@@ -929,9 +929,6 @@ public class TibTextUtils {
 		if (dcs.length == 0)
 			return null;
 
-		AttributeSet attr;
-		String fontName;
-		int fontNum;
 		char ch;
 		String wylie;
 
@@ -944,7 +941,7 @@ public class TibTextUtils {
 			for (int i=start; i<dcs.length; i++) {
 				ch = dcs[i].character;
 				int k = dcs[i].charNum;
-				fontNum = dcs[i].fontNum;
+				// int fontNum = dcs[i].fontNum;
 
 				if (k < 32) {
 					if (wylieBuffer.length() > 0 || !glyphList.isEmpty()) {

source/org/thdl/tib/text/TibetanMachineWeb.java

@@ -295,7 +295,7 @@ public class TibetanMachineWeb {
 			System.out.println("reading "+fileName);
 			String line;
 			boolean hashOn = false;
-			boolean isSanskrit = false;
+			boolean isSanskrit = false; //FIXME: this is never read.
 			boolean ignore = false;
 
 			while ((line = in.readLine()) != null) {