Bump C* to 1.2.11.

Makefile

@@ -2,7 +2,7 @@ include config.mk
 
 PROJECTS = FilePusher SysFsPusher CollectAgent ParastationProvider IPMIPusher
 DISTFILES = thrift-0.9.1.tar.gz;https://dist.apache.org/repos/dist/release/thrift/0.9.1/thrift-0.9.1.tar.gz \
-		apache-cassandra-1.2.10.tar.gz;http://mirror.netcologne.de/apache.org/cassandra/1.2.10/apache-cassandra-1.2.10-bin.tar.gz \
+		apache-cassandra-1.2.11.tar.gz;http://mirror.netcologne.de/apache.org/cassandra/1.2.11/apache-cassandra-1.2.11-bin.tar.gz \
 		mosquitto-1.1.3.tar.gz;http://mosquitto.org/files/source/mosquitto-1.1.3.tar.gz \
 		rudeconfig-5.0.5.tar.gz;http://rudeserver.com/config/download/rudeconfig-5.0.5.tar.gz \
 		popt-1.16.tar.gz;http://rpm5.org/files/popt/popt-1.16.tar.gz \