Special dtset index use double underscores, giving '__s', '__i', '__a'.
Merge branch 'merging'
 Fix error in robots.py
 Decrease size of ElectronDosFrame
 Add script to extract the docstrings from the run_* examples.
 Install scipy in verbose mode otherwise travis kills the build.
 Add configuration file for Flow scheduler.
 Remove python wrapper for the Abinit parser
Merge remote-tracking branch 'upstream/master' into merge-gmatteo
 Unit tests for XSF routines.
Made use of InputVariable object in both htc.input and htc.inputfile.
Merge pull request #16 from GkAntonius/master

InputVariable
 Add new options in setup.py to enable ipython and/or cython
Merge branch 'master' of https://github.com/gmatteo/abipy