Removing imported packages that are no longer among the jME 3.0-stable
dependencies.

Signed-off-by: Jordan Deyton <deytonjh@ornl.gov>
Disabling the audio renderer in the root jME Application.

Signed-off-by: Jordan Deyton <deytonjh@ornl.gov>
Merge remote-tracking branch 'origin/jME3-stable'

Read as "merging the jME3-stable branch back into master after
successful tests on Windows, Linux, and Mac".

Signed-off-by: Jordan Deyton <deytonjh@ornl.gov>
Adding extracted jME binaries to .gitignore.

Signed-off-by: Jordan Deyton <deytonjh@ornl.gov>