Predefine configurations for use in different environments, like development, testing, staging and production.

• Fix: missing yiiSetPathOfAlias.
• Update examples.

• Improve configuration merging.

• Update Composer support.

• Code refactor and structure change.
• Composer support.

• Code refactor and DocBlock clean up.

• Define only Yii framework path in configuration files instead of yii.php, yiit.php and yiilite.php.
• Better CSS styles for showDebug().

• Initial version.

yii-environment is free and unencumbered public domain software.