Update version number and date for upcoming release

- See related issue #58.

Author: martignoni

version.php

@@ -26,8 +26,8 @@
 
 $plugin = new stdClass();
 
-$plugin->version  = 2018111101;
-$plugin->release = '1.12.2-beta';
+$plugin->version  = 2018120100;
+$plugin->release = '1.12.2';
 $plugin->requires = 2017051500;
-$plugin->maturity = MATURITY_BETA;
+$plugin->maturity = MATURITY_STABLE;
 $plugin->component = 'tool_moodlebox';