When docstring starts with a section, docscrape.py now properly detects that a summary hasn't been provided.
replaced prints by logging in datasets
replaced prints by logging in devtools
replaced prints by logging in expr
replaced prints by logging in gui
replaced prints by logging in linear
Merge pull request #752 from Menerve/logging_datasets_devtools

Print replaced by logging in datasets and devtools folders
fix minor bug
Merge pull request #748 from AlassaneNdiaye/fix_docstring_format_check

Fix to docstring format check.
Merge pull request #753 from Menerve/logging_expr_gui_linear

Print replaced by logging in expr, gui and linear folders
added handling of batch size and num batches in ForcedEvenIterator
adapted test_revisit for ForcedEvenIterator
Merge remote-tracking branch 'upstream/master' into uneven_iter