MTD: enable buyapple.py example to run without DISPLAY
MTD: sns: WIP
MTD: sns: WIP
MTD: sns.py: WIP
MTD: olmar-bah.py: import from https://www.quantopian.com/algorithms/51697e1b977d7ebb530000ae/51697e3f490e6c067cf9ec8a#algorithm
MTD: olmar-bah.py: fixup a bit to work in zipline
MTD: olmar-bah.py: another try at emulating quantopian's batch_transform decorator
MTD: utils/factory.py: add toy version of data caching
MTD: olmar-bah.py: enable caching
MTD: utils/factory.py: add toy version of bars caching
MTD: zipline/utils/factory.py: caching debugging logs
MTD: zipline/examples/olmar-bah.py: store both tickers and sids
MTD: zipline/sources/data_source.py: swallow & log mapping data errors
MTD: enable olmar.py example to run without DISPLAY
MTD: pca.py: initial docstring-only version
MTD: fixup headless buyapple and dualmoving average
MTD: example algos
MTD: add example strat idea
MTD: pca.py: unchecked-in enhancements
MTD: README.md add tip about shorting the market by buying deep ITM puts on SPXL