MINOR Renamed checkdatabase method to checkDatabase to be consistent …

…(from r104708)

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/phpinstaller/trunk@112385 467b73ca-7a2a-4603-9d3b-597d59a354a9

install.php

@@ -164,7 +164,7 @@
 
 if($databaseConfig) {
 	$dbReq = new InstallRequirements();
-	$dbReq->checkdatabase($databaseConfig);
+	$dbReq->checkDatabase($databaseConfig);
 }
 
 if($adminConfig) {
@@ -218,7 +218,7 @@ class InstallRequirements {
 	 * starting with checking the database function exists in PHP, and
 	 * continuing onto more difficult checks like database permissions.
 	 */
-	function checkdatabase($databaseConfig) {
+	function checkDatabase($databaseConfig) {
 		if($this->requireDatabaseFunctions(
 			$databaseConfig,
 			array(