Fix chunkListFile name

Replace generic chunkListFile name with running test case in
qserv-czar.cnf, config.py and metadata.py
Remove creation of LSST database

Comment out creation of empty LSST database during configuration
for master and worker
Fix mysql and qserv connection tools

Updated mysql and qserv connection scripts for better formatting
Add review comments

Made changes from DM-658 review comments
Merge branch 'u/vaikunth/DM-658'