contrib: benchmark: Fix sw cleanup and add general options passed to xtfs_benchmark.
contrib: benchmark: Fix sw cleanup and add general options passed to xtfs_benchmark.

kleingeist/xtreemfs,harnesscloud/xtreemfs,kleingeist/xtreemfs,harnesscloud/xtreemfs,kleingeist/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,rbaerzib/xtreemfs,rbaerzib/xtreemfs,rbaerzib/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs,rbaerzib/xtreemfs,kleingeist/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,harnesscloud/xtreemfs,rbaerzib/xtreemfs,harnesscloud/xtreemfs,harnesscloud/xtreemfs,harnesscloud/xtreemfs,kleingeist/xtreemfs,kleingeist/xtreemfs