adjusted the pom so that the project: a) compiles with maven, b) compiles with Java8

[locked-fg]

Hi,

I just checked out the examples and found, that they were not compiling as they referenced classes that were only presnt in the encog-core 3.4.0-SNAPSHOTS artifacts.

When I built and installed encog-core 3.4.0-SNAPSHOTS artifacts, the javadoc creation failed as java 8 is more strict in parsing as it was in Java 7 ( http://www.locked.de/2015/04/05/how-to-ignore-maven-javadoc-errors-in-java-8/ ). So - in order to just compile and use the code - I also added the param to not check for such errors (yes, the correct way would be to correct all javadocs - but please forgive me that I chose the easy path as I just wanted to get the code up and runngin ;-)).

Well - Maybe someone else runs into the same problems, so I thought to just give back the changes. Hoping to get merged.

Cheers and thanks for the great lib!