FIX: reference the cvmfs-source directory to include cvmfs header files in test cases
add unit tests for atomic integer interface
check for proper creation of pthreads
Merge pull request #140 from reneme/test_atomics

TEST: Unit test for atomic.h

This testcase ensures the correct functionality of the atomic integer API in atomic.h
Merge pull request #139 from reneme/fix_unittest_includes

FIX: Includes in unit tests
add smallhash unit test
Merge branch 'master' into history
remove unused function
add rollback command to cvmfs_server