Release Notes - 7.6.1

Uses Java source 1.7.

• New org.jpl7.Dict type to handle SWI dictionaries.
• Refactored into Maven-compatible standard directory layout.
  • This included application sources in src/main/ and tests in src/test/
• Make repo Maven based.
• Clean-up, fixed, and updated all examples:
  • Refactored all examples into src/examples.
  • New README file under src/examples/java with explanations for each Java-calls-Prolog example.
  • Added some more useful examples and repaired non-working ones.