First cut of controller/web build environment refactor (#118) - un-tested due to postgres db config breakage
Corrected confusing comment

In some places we were not constructing PackageInstance according to the newly changed constructor prototype (which has id,package,arch,BUILD_ENV,suite etc...
Fix build environment lookup.
Fixed missplelling of new table names
Fix active flag on build env lookup
Merge branch 'master' of github.com:nicholasdavidson/pybit
Merge branch 'master' of github.com:nicholasdavidson/pybit
Drop dbconfig-common from pybit-web until the dbconfig branch is ready.
Merge branch 'master' of github.com:nicholasdavidson/pybit
Add buildenv_suitearch lookup endpoints,
job.py now passes build_environment to controller correctly, with default of None
Merge branch 'master' of github.com:nicholasdavidson/pybit
Combined arch and suitearch HTML pages
Extend db and model for buildenv suitearch.
envs.htm gains a way of inserting env/suitearch relations, similar to how arch has a way of defining suite/arch relations. Also, mounted /buildenv_suitearch app path
fix missing space in control version constraint for libjs-jquery.
Added db/lookups code for manipulating the blacklist rules
Merge branch 'master' of github.com:nicholasdavidson/pybit
PackageInstance.htm hasow gained a dropdown for 'Build Environment'
Blacklist web GUI now works.