update projects_controller to use postgresql; update requirements.txt
update project thumbnail macro to use sql structures
semantics
quick unrelated fix for project desc
change project template to use sql
semantics
remove need types; replace with straight needs
delete projects json
Merge branch 'master' into use-postgres

Conflicts:
	data/projects/ultralight.json: deleted!!
	templates/project.html: smashed with the postgres version
add db config
line semantics
connect using config
avoid unbound con errors
last commit was broken. shhh you didn't see this
kill pprint
Add SQL creation script
db retrieval flags, not None
Change id to be consistent with postgres cols
small cleanup
rename con to pg_conn and make it a class variable; open connection on server start and close on server stop