Change default SharedArea

Relative directories cannot work. Assume $HOME instead.

Needs checking/testing as even if it should work, not guaranteed.
Merge pull request #1921 from sposs/fixSSHCE

!!! [v6r10] Change default SharedArea in SSHComputingElement
v6r10p23
Merge branch 'rel-v6r10' into rel-v6r11
Typo in a doc string
Use SSHUser user name to query local batch system
Use qselect in querying the CE status
Do not ask explicitely for SRM2 protocol
Always use request owner proxy and not the host certificate
Bug fix in __removeReplica()
typo
Added better logging of errors in the JobWrapper
Just portings from integration
notify only for Status table
Added returnSingleResult() utility
Use returnSingleResult() utility
Merge pull request #1933 from atsareg/fix-v6r11

[v6r11] SSHTorque CE fix and others
Merge pull request #1935 from fstagni/betterLoggingOrErrors

[v6r11] Better logging or errors
v6r11-pre18 notes
v6r11 notes