Split make-repl-jframe into two functions, one of which returns
a JConsole for independent use.
Revert "Forked!"

This reverts commit f78915ebcf0bce4f509a1aa8c81f6b1a3cf8c0c7.
Revert "Change prompt."

This reverts commit 2e729d6d660dbdd01767badafeb739df5f7ef570.
Revert "Dependency changes."

This reverts commit 120632999a0d00145c6102f5e899f9793714e5df.
Reverting "Forked!"
Reverting "Change prompt. I seem to have hammered all my previous changes, so put them back."
Reverting "Dependency changes. Explicit about java version."
Merge branch 'split-panel-frame'