HPCC-10097 Regression test javaembed crashing intermittently

I have no proof that it's related to the (unreproducable) occasional crash,
but I did spot that I was not initializing one field passed to the jvm at
startup.

Signed-off-by: Richard Chapman <rchapman@hpccsystems.com>
HPCC-10095 Help Icon Issues

Changed Icon from a (?).
Added About dialog.

Fixes HPCC-10095

Signed-off-by: Gordon Smith <gordon.smith@lexisnexis.com>
Merge pull request #4883 from richardkchapman/jvm-uninit

HPCC-10097 Regression test javaembed crashing intermittently

Reviewed-by: Gavin Halliday <ghalliday@hpccsystems.com>
Merge pull request #4893 from GordonSmith/HPCC-10095_HelpIconIssues

HPCC-10095 Help Icon Issues

Reviewed-By: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>