Iris Calliope

Two main modifications:
1. session field in proj_meta.rd is now taken from ExpLog paradigm field
2. Integration of trace imaging, in which we don't have activity at reference points or corners.

lupoleon - In RoiQuest now it's possible to move individual reference points for wf recordings

Last modifications to save data as single in adata

activity converted to single before being saved to adata.

in widefield processing, psmoothing and median division are now both done on an ExpID level

updated docs and channel remapping for load_EEG function

fixed merge errors

Fixed an error in a description of parameters in WF_corrmat.m

Adding an option to smooth corrmat plots