Adding option to force server to wait until all FAM events are processed
minor fixes for FAM blocking
Metadata: don't require all profile groups to be public when using metadata db
bcfg2-test: load plugins on server startup
bcfg2-profile-templates.py: lots of improvements

calculate mean, median, and standard deviation
display templates with high stdev
properly calculate rendering times of templates on multiple clients
better logging
make number of runs per template configurable