IntIntHashMap: Reduce temp. ArrayList<Entry> instances in clone
Scripts: Bump to java 1.7.0_67 and apache-ant 1.9.4
Bug 1015: Test executable permission on Windows via bat file (temp dir, like on unix and osx)

Tested on Window 7 and Windows 8.1 using 'Using Software Restriction Policies',
i.e. disabled sw-execution in TEMP dir.

On Windows we need to add min. shell code, here 'echo off',
allowing the bat file to be executed if policy allows it.

Reminder: We test the following temp folder

1) java.io.tmpdir/jogamp
2) $XDG_CACHE_HOME/jogamp
3) $TMPDIR/jogamp or $TEMP/jogamp
4) $HOME/.jogamp

+++

Misc:

Proper 'duplicate' validation via 'file1.equals(file2)' test
using the abstract pathname.
scripts: favor java8 on 32bit like we do on 64bit