All the setup/teardown/pre/post/conditions template methods
now are required to return void. This was warned with phpunit 7
and now is enforced.
At the same time, fix a few wrong function names,
provider data and param types, return statements...
* Plugins can now explicitly declare supported and incompatible Moodle
versions in version.php
- $plugin->supported[37,39];
supported takes an array of ascending numbers, that correspond to a
range of branch numbers of supported versions, inclusive. Moodle
versions that are outside of this range will produce a message
notifying at install time, but will allow for installation.
- $plugin->incompatible = 36;
incompatible takes a single int corresponding to the first incompatible
branch. Any Moodle versions including and below this will be prevented
from installing the plugin, and a message will be given when
attempting installation.
