Disable irrelevant test
DB upgrade test (360 in demo/simple) is not relevant for 4.0-SNAPSHOT.
It should be re-enabled after DB schema for 4.0 is stable.
Add TIMEZONE parameter
Add MP_MEM_MAX, MP_MEM_INIT, MP_JAVA_OPTS vars
MP_MEM_MAX was originally known as MP_MEM.
MP_JAVA_OPTS can be used to send arbitrary options to Java
that hosts midPoint.
Simplify demo/simple by removing Shib items
And fix .env file by adding missing variable.
Do naming cleanup
Environmental variables and container names are improved.
Only demo/simple is OK now; other ones are inconsistent now.
Add auto-upgrade support
Adapt test to midpoint change
Add DB schema version check
Also disabled auto-restart of midPoint (causes problems
if midPoint cannot be started).
Add basic Shibboleth tests
Add more Bats tests
Also with other minor enhancements.
Add first real demo/simple test
Do a minor cleanup
1. demo/plain -> demo/simple
2. updated README.MD