Merge branch 'develop' into requests

* develop: (154 commits)
  Added missing easyblock line for pip
  Added pip easyconfig
  Update numpy, scipy and pandas
  Add support for Spark 1.6
  add easyconfig ScientificPython-2.9.4-intel-2015b-Python-2.7.11.eb, add easyconfig numpy-1.8.2-intel-2015b-Python-2.7.11.eb
  use string template for namelower/version in SCOOP easyconfig
  Re-enable `pic` as suggested by @boegel
  fix conflict on vsc-base version
  add easyconfig Greenlet-0.4.2-intel-2015b-Python-2.7.10.eb
  add easyconfig SCOOP-0.6.2-intel-2015b-Python-2.7.10.eb
  add easyconfig vsc-mympirun-scoop-3.3.0-intel-2015b-Python-2.7.10.eb
  modify easyconfig util-linux-2.27.1-intel-2015b.eb
  modify easyconfig OpenPGM-5.2.122-intel-2015b.eb
  add easyconfig arpack-ng-3.3.0-intel-2015b.eb
  add easyconfig Boost-1.59.0-intel-2015b-Python-2.7.11.eb
  add easyconfig Armadillo-6.400.3-intel-2015b-Python-2.7.11.eb
  add easyconfig OpenPGM-5.2.122-intel-2015b.eb
  add easyconfig libsodium-1.0.6-intel-2015b.eb
  add easyconfig util-linux-2.27.1-intel-2015b.eb
  add easyconfig ZeroMQ-4.1.4-intel-2015b.eb
  ...