Update XNIO version
Prep 4.0.0.Beta2
Next is Beta3
[REM3-176] Fix CME if some connections are being opened
Prep 4.0.0.Beta3
Next is 4.0.0.Beta4
Use the right class loader for XNIO
Log all authentication mechanisms tried on auth fail
Test for REM3-170, 2 tests: sending message inside the limits, outbound message overflow.
Revert "Test for REM3-170, 2 tests: sending message inside the limits, outbound message overflow."

This reverts commit 560303ee2277a004fbc1d77de77dce4be53623d8.

The test has a number of problems, including thread-safety problems and basic correctness issues.  I should have reviewed it more closely.
fix obtaining version string