Ta-lib

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- [FIX]: Fix incorrect C header include on Windows.

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- [FIX]: Import TA_FUNC_FLAGS, TA_INPUT_FLAGS, TA_OUTPUT_FLAGS into
talib.abstract to support backwards compatibility for backtrader

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- [NEW]: Upgrade to Cython 0.27.3

- [NEW]: Add support for set/restore candle settings

- [DOC]: Note Function API only supports numpy.ndarray (not pandas.Series)

- [NEW]: Continuous integration using Travis on Python 2.7, 3.4, 3.5, 3.6

- [NEW]: Merge common, func, abstract, stream as pxi to _ta_lib.pyx

- [DOC]: Update documentation to warn about unstable functions

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- [NEW]: Upgrade to Cython 0.23.4.

- [NEW]: Adding an experimental Streaming API (talib.stream).

- [NEW]: Support for "sunos"

- [FIX]: Fix issue initializing library for use with candlestick functions.

- [NEW]: Support for TA_SetUnstablePeriod and TA_GetUnstablePeriod

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- [NEW]: Support for python 2.6 and earlier for ordereddict.

- [FIX]: Add lib64 paths to setup.py.

- [NEW]: Upgrade to Cython 0.22.

- [FIX]: Allow running setup.py without numpy or cython

- [NEW]: Allow TA_LIBRARY_PATH and TA_INCLUDE_PATH environment variables.

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- [NEW]: Support pandas.Series and pandas.Dataframe inputs.

- [FIX]: Simple check to warn if ta-lib library is not installed

- [FIX]: Fix missing key error when inputs are not default names.

- [NEW]: Upgrade to Cython 0.20.

- [FIX]: Check all input array lengths are same.

- [FIX]: Check all input arrays for NaN elements.