ENHANCEMENT: #12 total_time_limit is now enforced
REFACTOR: adapted optimizers for #12

TPE now changes the working directory itself
TPE now doesn't rely on the config key algorithm any more
Spearmint now calls HPOlib.cv instead of cv for the experiments
REMOVED an update of the python path in wrapping.py
Merge branch 'development' of https://github.com/automl/HPOlib into development