refinement[ats_ATS140743]: Improve Join table cleaner

Change join table cleaner to use expiration time
instead of sessions. Allow join expiration to vary
based on where joins are used. Add default join
expiration values to info table.

Change-Id: I680a1cc4d2c1654c0ea508e60ef020c96161e4ef
feature[ats_ATS138840]: Use only jdbc prefs in client/server configs

Change-Id: I8a8e0fb1fd9abafa3b227a19b1f8668c460703e8