slight config re-org

refs #66
add config options for initdb

refs #66
separate admin creation from initdb

refs #66
use a boolean flag

refs #66
create admin account flag

refs #66
create admin user if name/email not already used

refs #66
import_data: fix school row data

refs #66
create admin account is it's own command

create_admin

refs #66
use envvars instead of config vars

refs #66
get a db session so you can do things to the db

refs #66
removed unused config vars

refs #66
Merge pull request #92 from brutal-chaos/initdb_add_config_opt_66

add create_admin command and add a silent option to pull info from the environment
courses: don't hardcode a version filter

refs #55
course install: remove site version restriction

refs #55
course install: filter out non 2.x sites

refs #55
add html for moodle version filter

refs #55