Issue #2090623 by tstoeckler: Provide a modern, flexible library API

This reverts commit 196c8590.

\Drupal\Core\Extension\ModuleHandler::parseDependency() is now public and
provides the same functionality.

Gordon Heydon authored 11 years ago and Tobias Zimmermann committed 11 years ago

In detail, this commit:
- Changes module info files to YAML (This allows to enable the module again)
- Changes the cache schema into a proper cache service
- Changes CSS_DEFAULT into CSS_AGGREGATE_DEFAULT because the constant was
  renamed
- Introduces a libraries_parse_dependency() function for the removed
  drupal_parse_dependency() (See https://drupal.org/node/2068797)
- Turns the libraries_test page callbacks into controllers
- Moves the libraries_test module
- Changes library info files to YAML

testing.

assertLibraryFiles().

directory and also some minor clenaup of libraries_get_libraries().