Revert "Reverging equals / hashCode commit until we figure out"

This reverts commit 810374fcf4faaec28cf8fd2767b6606befa3312b.
Add equals and hashCode in several classes used by ConfigurationImpl
Revert method deletion: used in AS7 integration.
Now documented.
Fix BridgeConfiguration constructor: do not ignore "ha" parameter.
Merge pull request #770 from FranciscoBorges/master

Fix serialization/equals issues, revert AS7 needed method, ignored ha parameter