Commit 7a5544c

=====

- [CHANGE]: ``talib.stream`` is now the real streaming API of TA-Lib C 0.8.1:

``stream.SMA(close)`` returns a handle, not a value. ``handle.value`` is the

value at the last history bar, ``handle.update(bar)`` costs O(1) and returns

too little history. It is the library's one recoverable error, so it is

catchable on its own rather than as a bare ``Exception``.

- [NEW]: The 40 functions TA-Lib C added since 0.7.1: AC, ADR, AO, CMF, CMOU,

COPPOCK, CUMSUM, CVI, DONCHIAN, DPO, EFI, ER, ERI, FOSC, FRACTAL, HA, HMA,

KC, KDJ, MARKETFI, MASSI, NVI, PERCENTILE, PERCENTRANK, PVI, PVO, PVT,