Update database and helper functionality in CodeIgniter

Revised database drivers, query builder, and file/inflector helpers for improved consistency and functionality. Updated copyrights, links, and standardized function names including deprecating `is_countable` in favor of `word_is_countable`. Added support for new SQL features and optimized query handling.

application/models/eloquent/Projectemployee.php

@@ -26,7 +26,7 @@ class Projectemployee extends BaseModel {
 	public static function getAvailableEmployees( $projectID )
 	{
 		$currentEmployees = Self::whereProjectId( $projectID )
-			->lists( 'user_id' );
+			->pluck( 'user_id' );
 
 		$availableEmployees = User::selectRaw( "id, CONCAT(firstname, ' ', middlename, ' ', lastname) AS fullname" )
 			->whereNotIn( 'id', $currentEmployees )