Ignore invalid limits, rather than failing

Otherwise, we can wind up in a situation where the entire UI fails to
launch just because an invalid limit is being set during startup.

Thanks to Gabe Selzer for finding this.

Author: ctrueden

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

@@ -204,9 +204,7 @@ public int getResultLimit() {
 
 	/** Sets the maximum number of results per search category. */
 	public void setResultLimit(final int resultLimit) {
-		if (resultLimit <= 0) {
-			throw new IllegalArgumentException("Limit must be positive");
-		}
+		if (resultLimit <= 0) return; // Ignore invalid limit.
 		this.resultLimit = resultLimit;
 	}