Bug 551562 - Make getService(Class<T>) to a default method

The addition of the method breaks the contract with existing alternative
implementations of IProvisioningAgent. By making the method a default
method the contract can be fulfilled. This also makes the implementation
in class ProvisioningAgent obsolete.

Update version of bundle org.eclipse.equinox.p2.core for 4.14.

Change-Id: I7263c80e89e38841ca95eca2f3ebc3c7ed9f659f
Signed-off-by: Karsten Thoms <karsten.thoms@itemis.de>
2 files changed