Merge pull request #288 from tjwebb/master

update nginx.site to remove healthfeed stuff (pm2)
require install-pilot plan for tests
fixed main spec
fixed uninstall bug in lib
removed old spec files
updated pg.cluster with new spec format
updated nginx.hosts with new spec format
updated nginx.site with new spec format
updated nginx.ssl with new spec format
updated pg.hba with new spec format
updated xt.install with new spec format
updated xt.config with new spec format
xt.config version bump
added new spec system to better integrate with commercial addons
fixed syntax error in spec
modularized spec
added requireindex
added xtuple as devdep
remove xtuple as devdep
Revert "added xtuple as devdep"

This reverts commit fe442db6723022851beddfb8933ed2beaa1949ec.