erased Proc::Spawn from shell include files
fixed: Uknown options shell-path for services
added command history to the shell. Up Arrow works
Install.pl: added Term::ReadLine::Gnu for command history
fixed do_all socket identity
fixed full_cache shell-path getopt
Merge branch 'master' of git://github.com/cvmfs/cvmfs
fixed typo
changed identity separator. Fixed compiling zpipe
fixed ipv6 address in ipv6_fallback test
fixed mount_repo open_shellout_socket
fixed clean command output missing
Merge pull request #78 from ruvolof/master

Many fixes and command history.
fixed mount helper return values
Merge branch 'master' of github.com:cvmfs/cvmfs
Merge branch 'master' into file_chunking