Update SynC Modular package

* Added a "Free registration" text file. As the user has to
  re-register from time to time for some reason, it may be
  easier to find the info in a text file in the app's folder
  than looking into the decription of SynC Modular in HaikuDepot.

build/jam/repositories/HaikuPorts/x86_gcc2

@@ -556,7 +556,7 @@ RemotePackageRepository HaikuPorts
 	sum_it-0.2beta-5
 	super_transball-2.1.5-2
 	swig-3.0.11-1
-	sync_modular-2.2.1b-2
+	sync_modular-2.2.1b-3
 	taglib-1.7.2-2
 	taglib_devel-1.7.2-2
 	takenotes-1.0.0-5