Log Message:
py-simpleeval: updated to 0.9.13

0.9.13

Better handling of empty strings passed as input.
Fix the shift safe number issue from 0.9.12
More minor pylint / etc fixes / cleanups (general code quality)
separate .parse
Allow setting up completely empty {} operators / functions
Add extra bit-ops
Add @daxamin to contributors ?
Version bump stuff.
other readme tweaks
star expressions, eg x = {"a": 1, "b": 2, **c}