Revert "gitignore - ignore further performance analysis files - Issue #5"

This reverts commit 3e12757efdd186ce2456fba58f71ccb11a196a82.
Revert "Revert "gitignore - ignore further performance analysis files - Issue #5""

This reverts commit 476fe9c97db1f0562b6fba798cc761f1ea04bf4c.
pep-8
swarm - revert to list comprehensions, since these are accessed later - Issue #7