we want to keep the directory

We don't necessarily need an empty q2.log file, just
want to keep the directory, so we use the .gitkeep convention.
updated version

Now that we have stable versions in MavenCentral, there's no need
to add our maven repository, unless you're getting a nightly build.
Add no message constructor

Use independent timer, purge timer queue from time to time
jPOS release 1.9.2
new development version, 1.9.3
Added len,description constructor
Add preliminary support for OSGI Framework

The new switch --osgi starts an OSGI Framework
(currently Felix but easily changed) and monitor
for bundles in the 'deploy' directory.
Initial tests with Gradle osgi plugin and BND
OSGI Framework now can sit in deploy/lib
Minimum QNode
scan 'bundle' directory at startup
Minor change in option description
Install first, then start
sort files in the 'bundle' directory
Place dependencies in 'lib' directory
exclude osgi-core from jar
Initial take at OSGi activator
Check NPE if bundle dir does not exist
Tweaked imported/exported packages
removed shutdown hook

(testing Activator's stop)