#48 Janino patch for Java 1.6

[Tom Poindexter]

Janino may fail under Java 1.6 while searching for
class files in Java's ext/ directory. Java 1.6 may report non-existent directories for the system property
'java.ext.dirs'. This causes a NullPointerExecption.

This patch implements actual fix for the Janino bug JANINO-84 (janino.net/changelog.html)

A better resolution would be to update Janino to
the latest release instead, and may require some
tweaks to TJC. Latest release at time of this bug
entry is 2.5.25, June 18, 2008

[Tom Poindexter]

tcljava.janino.jardir.patch