(FACT-645) Remove saucy from build defaults

This commit removes Saucy from the build_defaults, it wen EOL on July
17, 2014
Merge pull request #759 from clantant/FACT-645/stable/saucy

(FACT-645) Remove saucy from build defaults
(maint) bump beaker to v1.17.2
Merge pull request #764 from rji/maint/stable/bump_beaker

(maint) bump beaker to v1.17.2
Merge branch 'stable'