Merge pull request #272 from reneme/fix_build_cleanup

FIX: Remove cvmfs Packages from Build Machines

Packages were erased one after another. This causes problems if the packages have inter-dependencies and are not removed in the right order.
Now all packages that start with cvmfs will be removed, even if their inter-dependencies change.
rename unit test binary in *.deb package
Merge pull request #273 from reneme/rename_ut_in_deb

Rename Unit Test Binary in *.deb Package
install server package on non-server cloud tests (tbb)
improved logging in instance_handler.py
timeout tuning for spawning of VMs
instance_handler.py sets resize_rootfs cloud-config
Merge pull request #274 from reneme/fix_cloud_tests

FIX: Cloud Test Adaptions for Changed RPMs
FIX: server package not installed on NFS, EXLCACHE
Merge pull request #275 from reneme/fix_extra_cloud_tests

FIX: server package not installed on NFS, EXLCACHE
add various utility functions for partition handling
use new platforms/common.sh library
create two extra disk partitions in setup slc6
format and mount extra partitions for extra storage
centrally redirect test output into logfile
remove fine grained log file redirection in tests
FIX: typo
remove additional usages of $logfile
Merge pull request #277 from reneme/logfile_redirect

DRY: Centralize Logfile Redirections in Integration Test Cases
Merge pull request #276 from reneme/mount_additional_test_storage

Mount additional Test Storage for Backend Tests