Allow bash scripts to work within a distributation folder.

- Fixed NullPointerException when module name not found.

Change-Id: I8f9b29f047ff90995d4cccc6b4b518bfbf026570

tools/idegen/src/com/android/idegen/IntellijProject.java

@@ -55,6 +55,11 @@ public class IntellijProject {
 
         // First pass, find all dependencies and cache them.
         Module module = cache.getAndCache(moduleName);
+        if (module == null) {
+            logger.info("Module '" + moduleName + "' not found." +
+                    " Module names are case senstive.");
+            return;
+        }
         projectIdeaDir = new File(module.getDir(), ".idea");
         projectIdeaDir.mkdir();
         copyTemplates();