starting on vector cache
more work on vector cache, not functional.
more work on vector cache.
missed in previous commit
vector cache initial test working.
not done
deleting logic that is superceded by vector_cache
vector_cache wrapped earnings_per_share is working
getting tests running again
readability
moved io stuff to vector_cache
updating dependencies
missing comma
specify dateutil version
dateutil changed their interface
print cache misses
fixing dependencies
updated readme