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/libraries/reports/invoice/Invoices.php

@@ -116,7 +116,7 @@ class Invoices {
 		$this->invoicedYears = Invoice::selectRaw( 'DATE_FORMAT(invoicedate, "%Y") AS years' )
 			->distinct()
 			->orderBy( 'invoicedate' )
-			->lists( 'years' );
+			->pluck( 'years' );
 	}
 
 	private function setInvoiceReport()