Issue #2122857 by Sutharsan: Update documentation page_example() module.
Issue #2074243 by rteijeiro, wesleydv: Convert DBTNG to OOP.
Issue #2125313 by Sutharsan: Add controller to Example Block.
Issue #2140291 by Mile23: Make sure Page Example ensures non-numeric test.
Issue #2140291 by Mile23: Determine why Page Example fails under the testbot.
Issue #2140291 by Mile23: Determine why Page Example fails under the testbot.
Issue #2140291 by Mile23: Determine why Page Example fails under the testbot.
Issue #2102645 by Lukas von Blarer | Kristen Pol: Port cache_example module to Drupal 8.
Issue #2140291 by Mile23: Determine why Page Example fails under the testbot.
Issue #2102645 by Lukas von Blarer, sdelbosc | Kristen Pol: Port cache_example module to Drupal 8.
Issue #2032697 by Mile23: Create PHPUnit example module.