bug fix
Allow uploading proxies without embedded DIRAC group
Get issuer DN when evaluating DIRAC group
Allow sorting by one of the fields
Added showall command
v6r10
Extra printout
Allow sorting by a selected field
More showall options
Merge pull request #1787 from atsareg/fix-v6r10

[v6r10] Few fixes
v6r10p4
Conflicts resolved with rel-v6r11
Merge remote-tracking branch 'release/integration' into integration