added default value for drop_guesses_each_round to the "defaults" file instead of to core.py itself
using drop_guesses_each_round from config to instantiate IEPY loop
New round, with following changes from previous:
 - every new experiment will run in the dropping-old-guesses mode
 - SVM with decision_function now ask for dense matrixes
small changes to definition of round4
small changes made while writting down general report about loop experiments
added notebook
created report of IEPY loop experimentation so far
fixed docstrings on configuration-creator-scripts
config_round5 generator added
Merge branch 'loop-experiments-round-4' into develop