ENH:  extract rotation parameters from transformation matrix
ADD: init file for tests
Merge pull request #885 from christianmbrodbeck/rotation

ENH:  extract rotation parameters from transformation matrix
RM: content is unnecessary, empty file is sufficient
Merge pull request #891 from christianmbrodbeck/coreg

ENH scale_mri:  allow scaling source spaces separately
FIX: Added decoding and realtime modules
Merge pull request #892 from mainakjas/fix_autocomplete

FIX: Added decoding and realtime modules
Merge pull request #889 from t3on/tb-init_ADD

ADD: init file for tests
Merge pull request #888 from christianmbrodbeck/fix-vol-src

FIX: setup_volume_source_space arg
Merge pull request #884 from christianmbrodbeck/prepare_bem_model

ENH:  add prepare_bem_model wrapper
FIX: Fix mri handling
FIX: Typo
Merge pull request #893 from Eric89GXL/vol-mri-fix

FIX: Fix mri handling
FIX: Fix error wording.
FIX: Fix docstring wording.
ENH: add GUIs