package/tremor: bump to revision 19427

The revision 18153 dates from 2012-01-20. Lets update to latest changed revision
19427 which dates from 2015-01-07.

Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/tremor/tremor.mk

@@ -6,7 +6,7 @@
 
 TREMOR_SITE = http://svn.xiph.org/trunk/Tremor
 TREMOR_SITE_METHOD = svn
-TREMOR_VERSION = 18153
+TREMOR_VERSION = 19427
 TREMOR_LICENSE = BSD-3c
 TREMOR_LICENSE_FILES = COPYING