Revert "db"

This reverts commit d673043e223d8bd76b9394f7edc3a476423aef94.
Revert "Revert "db""

This reverts commit f965bc66f575f4e65804f1d1a3db8e3dce04fff1.
Added mysql-connector to relative path

Should resolve the build path issue
Added abstract class for servers
Some more abstract classes
Finished new Echo Server using abstract classes. These abstract classes
will serve to as a basis for the modules.
Merge branch 'HowardsBranch' into AbrahamsBranch