Added elastic net tests

Conflicts:
	bin/run.py
	bootstrap/post.sql.template
	bootstrap/resultbaseline.sql.template
	dataset/config.yaml
	src/loader/loadingManager.py
Skip general-CV logregr tests on GPDB 40 and 41, because they randomly
fail on these two platforms, but the errors cannot be repeated on our
laptops.
Added elastic net test cases
Fix post.sql.template syntax error.
Add feature tests to PG schedule
Add END tags to skip lists.