STY: Refactor logging
STY: Consistent verbose
FIX: Failing test
STY: Clearer test label
STY: Extra newline
STY: Fewer newlines
Merge pull request #752 from Eric89GXL/clean-logging

STY: Cleaner logging options
Updated write_inverse_operator so python creates FIF structures matching C
Updated inverse function to better match C version
Updated write_cov to add option to not write projection or bads in write_inverse_operator to better match C version of the function
Added ability to leave out projection and bad channels when writing to fif file (so that command line output can be better replicated in python)
Fixed typos/pep8 errors
Fixed typos/pep8 errors
Incorporate comments. Add FIFF unit names instead of hardcoding unit codes, unit handling, typos
Replaced cov proj/bad tags for check in write cov
Updated test_inverse to include unit check
Updated test_inverse to include unit check
Typos, Updated test_inverse to include unit check
Typos
ENH: fix error messages + casting issues