Prepare for the next release candidate

Author: garydgregory

pom.xml

@@ -33,7 +33,7 @@
   <groupId>org.apache.bcel</groupId>
   <artifactId>bcel</artifactId>
   <packaging>jar</packaging>
-  <version>6.8.1-SNAPSHOT</version>
+  <version>6.8.1</version>
   <name>Apache Commons BCEL</name>
   <description>Apache Commons Bytecode Engineering Library</description>