- change the secret/secrets code so that it will work in both old and new
Mojolicious versions.
- Add information that perl modules can be installed from distribution
package repositories, and not neccessarily from cpan
- Add more description to information on config file
- Revert default config to previous state
- Add tests (to be run by explain.pl test) that check for required perl
modules
Each plan will have now delete_key (random, 50 character string), which
can be used with url like http://.../d/plan-id/delete-key
to delete it.
The delete key is shown once just after plan creation
