Removed some throw declarations from methods, so some try/catch blocks
could be removed.
Use switch/case instead of if/else if.
Make members final when possible.
Add logger statements in case of error IQ result and remove superfluous
check of instanceof IQ.
instead of using the old baseName=smack appendix=project.name approach,
we are now going convention over configuration and renaming the
subprojects directories to the proper name.
Having a prefix is actually very helpful, because the resulting
libraries will be named like the subproject. And a core-4.0.0-rc1.jar is
not as explicit about what it actually *is* as a
smack-core-4.0.0-rc1.jar.
SMACK-265
