Merge remote-tracking branch 'github-p/feature/template-engine' into develop

* github-p/feature/template-engine: (87 commits)
  [feature/template-engine] Delete _get_locator function.
  [feature/template-engine] Clean up template locator usage in bbcode.
  [feature/template-engine] Need to call set_template on template.
  [feature/template-engine] Update installer for template engine changes.
  [feature/template-engine] Dependency inject locator into template.
  [feature/template-engine] Delete useless code from set_template.
  [feature/template-engine] Delete no longer used $template_filename property.
  [feature/template-engine] Delete useless $template globalization.
  [feature/template-engine] Use template engine class in bbcode class.
  [feature/template-engine] Corrected an error message in template locator.
  [feature/template-engine] Remaining documentation.
  [feature/template-engine] More documentation for template class.
  [feature/template-engine] Create load_and_render to reduce code duplication.
  [feature/template-engine] Get rid of orig_tpl_* in template engine.
  [feature/template-engine] Delete $style_name param from locator's set_custom_template.
  [feature/template-engine] Add constructor to template locator.
  [feature/template-engine] Factor template locator out of template class.
  [feature/template-engine] Delete $files_template property.
  [feature/template-engine] Rename is_absolute to phpbb_is_absolute.
  [feature/template-engine] Test template DEFINE statements across files
  ...

Conflicts:
	.gitignore
	phpBB/includes/template.php

phpBB/install/database_update.php

@@ -84,7 +84,6 @@ if (!empty($load_extensions) && function_exists('dl'))
 
 // Include files
 require($phpbb_root_path . 'includes/class_loader.' . $phpEx);
-require($phpbb_root_path . 'includes/template.' . $phpEx);
 require($phpbb_root_path . 'includes/session.' . $phpEx);
 require($phpbb_root_path . 'includes/auth.' . $phpEx);