[Solid_software] new ifarm, new file location, vnc

[Zhiwen Zhao]

Hi, All

We have to change from old ifarm1101 with centos6.5 which will be
decommissioned sooner or later.
Also I moved the default file location on ifarm to have better 
performance and backup
============================================================
default ifarm, from ifarm1101 with centos6.5 to ifarm (alias to 
ifarm1401 and 1402) with centos7.2
default framework location from /work/halla/solid/apps/jlab_root to 
/group/solid/apps/jlab_root
default repo checkout on ifarm, from /home/zwzhao/solid/solid_svn to 
/group/solid/solid_svn
============================================================
To use these, update your set_solid from SVN

new farm scripts are added here
https://jlabsvn.jlab.org/svnroot/solid/solid_gemc2/script/farm/

The wiki is updated to reflect the changes
https://hallaweb.jlab.org/wiki/index.php/Solid_Software

A new trick to run it on ifarm in graphic mode using vnc
https://hallaweb.jlab.org/wiki/index.php/Ifarm_graphic_mode

Zhiwen