Version bump to 2.1.1 and more target folder filter in projects

plugins/org.yakindu.sct.doc.user/META-INF/MANIFEST.MF

@@ -2,5 +2,5 @@ Manifest-Version: 1.0
 Bundle-ManifestVersion: 2
 Bundle-Name: Yakindu SCT Help
 Bundle-SymbolicName: org.yakindu.sct.doc.user;singleton:=true
-Bundle-Version: 2.1.0.qualifier
+Bundle-Version: 2.1.1.qualifier
 Bundle-Vendor: yakindu.org