Do not lower-case the search query

It is the responsibility of each searcher to decide whether it cares
about the case. In particular, the code snippet searcher _needs_ the
case to be correct or else the code snippet will not run correctly.

Author: ctrueden

src/main/java/org/scijava/ui/swing/search/SwingSearchBar.java

@@ -560,7 +560,7 @@ public void mouseMoved(final MouseEvent e) {
 		public void search(final String text) {
 			assertDispatchThread();
 			searchText = text;
-			operation.search(text.toLowerCase());
+			operation.search(text);
 		}
 
 		// -- Helper methods --