Keep using system python though jhbuild can be used with any python2 if it is leveraged during a build process

since we have a bin directory

{vis}[intel/2016b] matplotlib v1.5.2 (REVIEW)

add easyconfig matplotlib-1.5.2-intel-2016b-Python-2.7.12.eb, add easyconfig matplotlib-1.5.1-intel-2016b-Python-2.7.12.eb

{compiler,tools}[GCCcore/5.4.0,dummy/] PGI v16.7, numactl v2.0.11

This version is based on the intel 2016a one.

add tcsh as OS dep in NAMD easyconfigs

{tools}[intel/2016b] worker v1.6.6