main/owncloud: upgrade to 4.5.4

main/owncloud/APKBUILD

 # Maintainer: Leonardo Arena <rnalrd@alpinelinux.org>
 pkgname=owncloud
-pkgver=4.5.3
-pkgrel=1
+pkgver=4.5.4
+pkgrel=0
 pkgdesc="Your own WebDAV-based cloud service"
 url="http://owncloud.org"
 arch="noarch"
@@ -87,5 +87,5 @@ videoviewer() {
 }
 
 
-md5sums="113795449590f18fabc1559784e08e4a  owncloud-4.5.3.tar.bz2
+md5sums="5eb62820d94c6c559b633538e3d568e4  owncloud-4.5.4.tar.bz2
 b08945b74f3b219677bdfd67f4298304  owncloud.config.php"