Bump karaf from 3.0.5 to 3.0.8

Change-Id: Ic5bc130f5110f4ff9da6ec22d066a5dd3069288d
diff --git a/tools/dev/onos.cshrc b/tools/dev/onos.cshrc
index 0fb50aa..785509d 100644
--- a/tools/dev/onos.cshrc
+++ b/tools/dev/onos.cshrc
@@ -27,7 +27,7 @@
     setenv MAVEN $HOME/Applications/apache-maven-3.3.9
 endif
 if ( ! $?KARAF_VERSION ) then
-    setenv KARAF_VERSION 3.0.5
+    setenv KARAF_VERSION 3.0.8
 endif
 if ( ! $?KARAF_ROOT ) then
     setenv KARAF_ROOT $HOME/Applications/apache-karaf-$KARAF_VERSION