ENH: Use Python 3.4
FIX: Ipython version
FIX: Fix Travis
FIX?: No force serial
FIX?: Remove shm lines
FIX: Set env vars in same place
FIX: joblib
FIX: export
Merge pull request #1559 from Eric89GXL/py34

ENH: Use Python 3.4 on Travis
FIX (GUI):  MNE_ROOT test
Merge pull request #1561 from christianbrodbeck/gui

FIX (GUI):  MNE_ROOT test
FIX _write_raw():  don’t write meas_id if it is not specified
Merge pull request #1555 from christianbrodbeck/raw

FIX _write_raw():  don’t set meas_id to invalid value
FIX (GUI): FREESURFER_HOME test
Merge pull request #1565 from christianbrodbeck/gui

FIX (GUI): FREESURFER_HOME test
fix time_generalization logger
Merge pull request #1566 from dengemann/fix_time_gen_print

FIX: fix time_generalization logger
FIX: Use rannge instead of unit_mul to deal with EEG units to maintain compatibility with .fif format and MNE-C
FIX : fix writing of utf8 strings in report
FIX TESTS: Use skip_mayavi() for only add_section functions