Set an ENVSETUP_VERSION.
Fix PROJECT_NAME template for envsetup.local.sh.
Fix typo in guess_is_top().

I forgot to remove the tests '!' in commit 1f4f8cfed29c7cbb2275618123280f63d7401475
modify project completion function for general use.
Remove sxe specific _sxe_complete_demos() completion function.
Remove sxe specific demo commands.
Overhaul choosejdk().

It now works correctly (e.g. /path/to instead of to) and supports
/usr/local/lib/jvm as well as /usr/lib/jvm.
Extend lsproj to handle gradle/make projects.
Update readme.