Interfaces: renamed the replication_toMaster method to...

Interfaces: renamed the replication_toMaster method to xtreemfs_replication_to_master to match the C-conventions.

git-svn-id: https://xtreemfs.googlecode.com/svn/trunk@1353 f8528748-c2c0-11dd-ba5c-d3b7c2b3b534