Sanity check security and improve pg_hba.conf in Postgres cartridge

https://bugzilla.redhat.com/show_bug.cgi?id=1090547
bz1092161 - conditionally stop jenkins service
Update API version to 1.7
Merge pull request #5346 from maxamillion/admiller/bz1092161

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Merge pull request #5370 from liggitt/update_api_version

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Bug 1091044
added DEFAULT_MAX_UNTRACKED_ADDTL_STORAGE_PER_GEAR and DEFAULT_MAX_TRACKED_ADDTL_STORAGE_PER_GEAR
Merge pull request #5367 from bparees/postgres_security

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Merge pull request #5365 from lnader/master

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