don't rely on the old version in info.xml anymore

lib/app.php

@@ -482,7 +482,7 @@ class OC_App{
 			if ($currentVersion) {
 				if (version_compare($currentVersion, $installedVersion, '>')) {
 					OC_App::updateApp($app);
-					OC_Appconfig::setValue($app,'installed_version',$appInfo['version']);
+					OC_Appconfig::setValue($app,'installed_version',getAppVersion($app));
 				}
 			}
 		}

lib/installer.php

@@ -175,7 +175,7 @@ class OC_Installer{
 		}
 		
 		//set the installed version
-		OC_Appconfig::setValue($info['id'],'installed_version',$info['version']);
+		OC_Appconfig::setValue($info['id'],'installed_version',OC_App::getAppVersion($info['id']));
 		OC_Appconfig::setValue($info['id'],'enabled','no');
 		return $info['id'];
 	}
@@ -297,7 +297,7 @@ class OC_Installer{
 			include(OC::$APPSROOT."/apps/$app/appinfo/install.php");
 		}
 		$info=OC_App::getAppInfo($app);
-		OC_Appconfig::setValue($app,'installed_version',$info['version']);
+		OC_Appconfig::setValue($app,'installed_version',OC_App::getAppVersion('version']));
 		return $info;
 	}
 }

lib/migrate.php

@@ -434,7 +434,7 @@ class OC_Migrate{
 
 			// Now add some app info the the return array
 			$appinfo = OC_App::getAppInfo( $provider->getID() );
-			$return['apps'][$provider->getID()]['version'] = $appinfo['version'];
+			$return['apps'][$provider->getID()]['version'] = OC_App::getAppVersion($provider->getID());
 
 		}