Optimizations and fixes in Vagrant image provisioning.

Makefile

Vagrantfile

conf/cron/mentat-backup-py.cron

conf/cron/mentat-cleanup-py.cron

conf/cron/mentat-informant-py.cron

conf/cron/mentat-netmngr-py.cron

conf/cron/mentat-precache-py.cron

conf/cron/mentat-reporter-py.cron

conf/cron/mentat-statistician-py.cron

conf/cron/mentat-watchdog-events-py.cron

conf/cron/test-mentat-ideagen-py.cron

conf/mentat-hawat-dev.py.conf

conf/mentat-hawat.py.conf

doc/sphinx/_doclib/development.rst

vagrantenv/.bashrc

vagrantenv/provision.sh

vagrantenv/system-banner.sh