Issue #66: REG: missing #REG-Operator implemented: rebased.
Added new tests.
Moved general purpose methods to StringUtils.java.

Change-Id: I42f12251a73511fff07b48e06f6018ba1e181433
Reviewed-on: https://korap.ids-mannheim.de/gerrit/c/KorAP/Koral/+/7658
Reviewed-by: Nils Diewald <nils@diewald-online.de>
diff --git a/pom.xml b/pom.xml
index 6bdd557..8d22bf5 100644
--- a/pom.xml
+++ b/pom.xml
@@ -177,6 +177,7 @@
 		          	<exclude>**/c2ps_opIN.java</exclude>
 		          	<exclude>**/c2ps_opOV.java</exclude>
 		          	<exclude>**/c2ps_opPROX.java</exclude>
+		          	<exclude>**/c2ps_opREG.java</exclude>
 		          	<exclude>**/c2ps_opWF.java</exclude>
 		          	<exclude>**/c2ps_optCase.java</exclude>
 		          	<exclude>**/.gitignore</exclude>