FIX: do not repeat samples on buffer borders
DOC: update whats new
Merge pull request #1618 from mainakjas/fix_ftclient_buffer

FIX: do not repeat samples on buffer borders
add fiff constant for seeg
update picks for seeg
update defaults
add seeg to create_info & add tests
add seeg to misc uses of channel types
fix fmt & add seeg to pick fwd & indices
update docstring pick_types_evoked
add test pick foward seeg