Improvement to the ServerWindow

- sorting of Roles
- resizeColumns voor zowel databases als roles
- boolean columns now display check mark and cross

pglab/ResultTableModelUtil.cpp

@@ -54,7 +54,10 @@ QColor GetDefaultColorForType(Oid o)
 
 QString FormatBoolForDisplay(bool v)
 {
-	return v ? "TRUE" : "FALSE";
+    static QString t(QChar(0x2713));
+    static QString f(QChar(0x2717));
+
+    return v ? t : f;
 }