Fix 3rdparty paths, initialise OAuth in correct order

lib/oauth.php

@@ -37,12 +37,13 @@ class OC_OAuth {
 	 */
 	private static function init(){
 		// Include the libraries
-		require_once(OC::$THIRDPARTYROOT.'3rdparty/oauth-php/library/OAuthServer.php');
-		require_once(OC::$THIRDPARTYROOT.'3rdparty/oauth-php/library/OAuthStore.php');
+		require_once(OC::$THIRDPARTYROOT.'/3rdparty/oauth-php/library/OAuthServer.php');
+		require_once(OC::$THIRDPARTYROOT.'/3rdparty/oauth-php/library/OAuthStore.php');
+		require_once(OC::$THIRDPARTYROOT.'/3rdparty/oauth-php/library/OAuthRequestVerifier.php');
+		// Initialise the OAuth store
+		self::$store = OAuthStore::instance('Session');
 		// Create the server object
 		self::$server = new OAuthServer();
-		// Initialise the OAuth store
-		self::$store = OAuthStore::instance('owncloud');
 	}
 	
 	/**
@@ -109,6 +110,7 @@ class OC_OAuth {
 	 * @return string|int
 	 */
 	public static function isAuthorised(){
+		self::init();
 		if(OAuthRequestVerifier::requestIsSigned()){
 			try{
 				$req = new OAuthRequestVerifier();