#51: Adds crate size to crate view
#51: Adds zip size and SWORD limit parameters
#51: Disables download/SWORD buttons if the crate is over limit
#51: Adds server side crate size restrictions
Merge branch '51' into nectar_contrib

Conflicts:
	crate_it/appinfo/app.php
	crate_it/index.php
	crate_it/js/crate.js
	crate_it/templates/index.php