Update gradle
Fix exception message

Exception message in FlatNetwork.decode was misleading
Remove .gradle
Add travis integration
Merge with branch 'master'

Conflicts:
	.travis.yml
Remove unused import

Unused import breaks build on Java 6 https://travis-ci.org/janisz/encog-java-core/jobs/42578492
Merge pull request #191 from janisz/gradle_update_and_small_fixes

Gradle update and small fixes