Tradingstrategy

- Make sure sizer is only used if size is not None (default)
- Doc corrections
- Improve legend presentation in sameaxis mode

- Added Calmar, TimeDrawDown and PeriodStats analyzers
- Reach data by names as dict or dot notation
- Allow one asset to compensate the positions of another
- Add more python versions to Travis PR 276
- Support plotting datas on same y-axis
- Update sample in contrib pair trading PR 273
- PR 274 number of tranches to FixedSize Sizer and add FixedSizeTarget
- Close 280 exception when get pyfolio analyzer agaist multiple data
- Close 277 (inc PR 277) by entering re-calculation of xstart and xend
plotting indices

- Add Indicator HurstExponent (requires numpy)
- Allow plotting specific date ranges with start and end named arguments
to plot
- Address 269 missing last bar backfill_from
- Fix typo (271) in frompackages import for InfluxDB feed
- Add OLS_Slope_InterceptN, OLS_BetaN, OLS_TransformationN and Coint
- Ensure broker has prices even if tick_xxx is not defined

- Add LaguerreRSI PR 265
- Add LaguerreFilter PR 267
- Doc maintenance (also PR 266)
- Add ParabolicSAR
- Add InfluxDB Data feed (PR 257) and Import Tool (PR268)
- Add auto-pytz code from IBData to generic feeds to allow passing strings
Address 262
- Add support for packages and frompackages
- Finish import of new sizers
- Fix 263 - Refresh resample-tickdata to specify timeframe
- Store module name and not module in talib autogenerated wrapper class
- pyfolio api change note

- Correct csvgeneric import

- Set eos time from param.sessionend in csv timeframes
- Improve support for timeframe/compression in btrun
- Add ApplyN indicator (and base for it and variants BaseApplyN)
- Add PercentSizer and AllInSizer
- Add DV2 Indicator
- Add PercentRank Indicator