ENH: Pass config_opts through to pysurfer
wip: delayed stc
delayed stc modify
rm kernel fun
unmodify example
cleanup, tests
revert example
doc, cleanup
STY: Clearer description
Merge pull request #498 from Eric89GXL/stc-opts

ENH: Pass config_opts through to pysurfer
rebase, fix stc.expand
Merge pull request #481 from mluessi/delayed_stc

WIP: Smarter SourceEstimate with delayed computation
Merge branch 'evoked_apply_proj' of github.com:dengemann/mne-python into evoked_apply_proj
Add mixing
ENH: Fully implemented Mixin instead of class methods.

The fine tuning is missing however, namely.
- handle proj attibutes correctly on reading and writing
- add exceptions for the most obvious corner cases
- integrate the new methods with existing Epochs reading / writing.