BUG-2381: do not retain references to DependencyResolverManager

Instead of creating an anonymous subclass, define a proper class and
pass it the three required fields.

Change-Id: I5c9eea66284b60597ac77b336ef3afa652633479
Signed-off-by: Robert Varga <rovarga@cisco.com>
Fix typos and missing space

Change-Id: Iaf581baea36091724eebbc5de33dda34605e1912
Signed-off-by: Robert Varga <rovarga@cisco.com>
Make NetconfMessageTransformUtil constants final

All of these constants were missing 'final' keyword, making them not
really constant.

Change-Id: I192df7dc9d063442f99256e874d467ed800f3717
Signed-off-by: Robert Varga <rovarga@cisco.com>
Merge "BUG-2381: do not retain references to DependencyResolverManager"
Merge "Fix typos and missing space"