Tolerate missing jnigraphics lib on Lollipop
ignore jnigraphics load errors

Nexus 4 w/ Android 5.0 Lollipop produces the following error message:

java.lang.UnsatisfiedLinkError: Shared library "/system/lib/libjnigraphics.so" already opened by ClassLoader 0x0
Merge pull request #971 from jmakovicka/r1.9

Tolerate missing jnigraphics lib on Lollipop