move AddressSelector from core.utility to the core package
properly format the LICENSE file [minor]

... actually using the template from:
http://choosealicense.com/licenses/bsd-3-clause/
mention the full name in the LICENSE file [minor]
mention last year of significant changes (2014) in the LICENSE file [minor]
split OSCPacket into an interface and an abstract class
hide OSCJavaToByteArrayConverter from the public API

This is cleaner, and also suggested by the bundle plugin (OSGi).
Revert "OSGi: also export the utility package"

This reverts commit 66efd93df62d06d65bf7b82fc2089e78acddd849.

As the public API (in the core package) is now clean
of references to the utility package,
we no longer have to export that one.