Avoid using the JavaVM framework on MacOSX
Avoid using the JavaVM framework on MacOSX

The problem is that newer Java versions are no longer shipped as
frameworks, and consequently the ImageJ launcher triggers an installation
of Java 6 – even on machines that want Java 7 or even Java 8.

So let's violate the obsolete suggestion to use the JavaVM framework, and
access libjvm just like everywhere else: using dlopen().

Signed-off-by: Johannes Schindelin <53fb8db7833fca1e1746dd8592f61048d350f64c@gmx.de>

imagej/imagej-launcher,imagej/imagej-launcher,imagej/imagej-launcher