stop relying on $MKLROOT in ROOT easyconfigs

{bio}[intel/2015a] FSL 5.0.8 + deps (REVIEW)

{chem}[intel/2015a] pymatgen 3.0.13 + spglib 1.7.3 (REVIEW)

{lib}[intel/2015a] monty 0.6.4 for Python 2.7.9 (REVIEW)

{data}[intel/2015a] h5py 2.5.0 (REVIEW)

add easyconfig for WIEN2k v14.1 with intel/2014b

{vis}[intel/2015a] grace 5.1.23 (REVIEW)

{math}[intel/2015a] numpy 1.9.2 + scipy 0.15.1 (REVIEW)

Toolchain goolf 1.5.16

{devel}[intel/2015a] python-meep 1.4.2 with Meep 1.3 and Python 2.7.9 (REVIEW)

add pandas extension to Python 2.7.9 easyconfigs

{lib}[intel/2015a] pyhull 1.5.4 (REVIEW)

add easyconfig (and patch) for pyhull + Qhull with intel/2015a, set $CPATH correctly in existing Qhull easyconfigs