remove global config table
Cleanup unused files.
aliasing is bad
rename to be consistent with naming scheme
fix name again
remove stale file
remove stale file
Add more documentation.
combine tables `club` and `club_configuration` to remove redundancy
rationalize order of tables in db
Add check to ensure that users only pull clients to which they have access.

The access check is by ensuring that there exists a service in services
for which there is intersection between the logged-in user's clubs and
the service's clubs.
Merge branch 'master' of https://github.com/patricklam/judodb-backend
and added changes from Patrick

	modified:   README.md
	renamed:    produceoutput.php -> _produce_fpdi_output.php
	deleted:    allids.php
	modified:   db.sql
	deleted:    design.txt
	deleted:    ft303.pdf
	deleted:    global_config_version.php
	modified:   listesft.php
	modified:   listesimpot.php
	modified:   listespdf.php
	modified:   listespresences.php
	new file:   pull_all_users.php
	modified:   pull_one_client.php
	deleted:    push_one_global_config.php
	deleted:    user.php