Got rid of Spring Security feature since it is provided in Karaf 2.3.4+.
Got rid of unnecessary function in ToStringBuilder.
Spelling fix.
Added Spring-instantiated classes to the OSGi Import-Package list.
Wrapped Spring context instantiation so that it uses the current class's
classloader so that the loading works properly in OSGi.
Refactored attribute type to mesh more to the sampler's Metric type.
Trying to fix the RPM generation (still fails)

./makerpm.sh
...
    Processing files:
opennms-plugin-collector-vtdxml-handler-1.13.2-0.20140502.1.noarch
    error: File not found by glob:
/home/agalue/opennms/target/rpm/BUILDROOT/opennms-1.13.2-0.20140502.1.x86_64/opt/opennms/lib/opennms-vtdxml-collector-handler-*.jar
add assembly for the vtdxml bits