ENH: add AverageRFR capacities
starting multi condition fiff
ENH: revamp TFR io
FIX tables
rebase, fix doc, handle orig_blocks locally
fix+update whatsnew
ENH: add multi condition support and adopt evokeds API + fix dependency check
fix py3k, cosmits + cut down test time by 20 seconds (evil raw info)
Merge pull request #1614 from dengemann/tfr_io

ENH: add hdf5 io and AverageRFR IO capacities