Add slf4j to unit tests, fix typo

lib/felix.unit.test.properties

@@ -31,8 +31,8 @@ org.osgi.framework.system.packages.extra= \
  sun.security.action, \
  sun.security.pkcs11, \
  sun.reflect, \
- org.xbill.DNS;version="2.1.7",\
- org.xbill.DNS.util;version="2.1.7",\
+ org.xbill.DNS;version="2.1.7", \
+ org.xbill.DNS.utils;version="2.1.7", \
  sun.audio,\
  sun.nio.ch,\
  com.sun.nio.sctp
@@ -50,6 +50,7 @@ org.osgi.framework.system.packages.extra= \
 #install (but don't start) OSGi fragments
 felix.auto.install.10= \
  reference:file:sc-bundles/fmj.jar \
+ reference:file:sc-bundles/slf4j-jdk14.jar \
  reference:file:sc-bundles/jitsi-lgpl-dependencies.jar
 
 felix.auto.start.10= \
@@ -63,6 +64,7 @@ felix.auto.start.10= \
  reference:file:sc-bundles/commons-lang.jar \
  reference:file:sc-bundles/guava.jar \
  reference:file:sc-bundles/weupnp.jar \
+ reference:file:sc-bundles/slf4j-api.jar \
  reference:file:sc-bundles/dnssecjava.jar
 
 felix.auto.start.11= \