ENH: Optimizing norm calculation
FIX: Added a test for sum_squared(), changed docs and fixed PEP8
Merge pull request #775 from mainakjas/optimize_code

ENH: Optimizing norm calculation
ENH: Remove deprecated functions
FIX: Fix __init__
ENH: More deprecation
Merge pull request #780 from Eric89GXL/dep-del

ENH: Delete deprecated functions for 0.7
ENH: Add volume and discrete source space creation support
ENH: Discrete source space support
STY: Minor fixes
ENH: fix layout guessing / ch names for plot proj topomap
Merge pull request #782 from dengemann/fix_layout_ssp

ENH: fix layout guessing / ch names for plot proj topomap
FIX: remove dupe
ENH: Clearer input arguments
FIX: Remove redundant code
ENH: Cleaner API without pos as str
ENH: Safer testing
ENH: Use float32 for slight memory savings
Merge pull request #781 from Eric89GXL/vol-src

ENH: Add volume and discrete source space creation support
FIX: fix Python 2.6 partial issue