Merge pull request #2143 from atsareg/fix-v6r12

[v6r12] Added Os.which()
v6r12-pre23
updating the correct configuration file
Call the getters to fetch the proper information from the parent
allow setServer in the ReqClient
Cherry-pick all UI tweaks & fixes.
Patch mysql.server to ignore default system my.cnf.
[v6r11] Fix FTS job monitoring a la FTS2
Merge remote-tracking branch 'upstream/rel-v6r11' into v6r11-fixFTS-141026
Merge pull request #2144 from chaen/rel-v6r11_FIX_IncorrectJson

[v6r11] BUGFIX : toJSON of the RMS dumps fake data
Merge pull request #2147 from phicharp/v6r11-fixFTS-141026

[v6r11] Fix FTS job monitoring a la FTS2
v6r11p19 notes
Merge pull request #2145 from ic-hep/minor_ui_fixes

[v6r12] Cherry-pick all UI tweaks & fixes.
Merge pull request #2146 from ic-hep/mysql_install_patch

[v6r12] Minor mysql server installation bugfix.
v6r12-pre24
Conflicts resolved with rel-v6r11
v6r12
just comment
Copying extra options over
Merge pull request #2148 from fstagni/bunchFixesv6r12-9

[v6r12] Dealing with extra options from the pilot