Supress warnings about output scaling
Supress warnings about output scaling

Didn't want the test program to throw warnings.

Also added calls to jheapcl if it is present on path, to try to minimize jave heap problems.

Signed-off-by: David Brainard <7bf71e13ed533be24d7a9ab04d98b2cedddd3384@psych.upenn.edu>

RenderToolbox3/RenderToolbox3,RenderToolbox3/RenderToolbox3,tlian7/RenderToolbox3,RenderToolbox3/RenderToolbox3,RenderToolbox3/RenderToolbox3,tlian7/RenderToolbox3,tlian7/RenderToolbox3,tlian7/RenderToolbox3