Tradingstrategy

- Small documentation updates
- Indicators can be plotted on/over other indicators
- Sample of plot-on-same-axis added

- Doc/Readme additions for 3.5
- Removed dangling py3 in writer from six transition
- Added writer testcase

- Added Python 3.5 to Travis CI
- Removed 2.6 and added 3.5 from setup.py
- Refactored bt-run.py to internal function and added btrun executable to
installation
- Added cerebro parameters and writers support to btrun
- Fixed duplicate writers next call in "next" mode
- Improved LineSeries objects name printing in WriterFile and changed "csv"
to False
- Correct sign of "closed" if a long/short position if a position is reduced:
closes 18
- Removed six dependency through small internal Py2/Py3 module and updated
docs and setup.py
- Removed nose-exclude from test requirements
- Implement current order status in broker
- 0 can be passed as number of maxcpus for optimization (same as None)
- SQN and TradeAnalyzer documented

- Drop Python 2.6 support (also removing internal OrderedDict) after adding
nexbars which needs collections.deque with maxlen (>= 2.7)
- First Writer Implemenatation for CSV Output
- TradeAnalyzer implementation
- SystemQualityNumber (SQN) implementation

- Broker reworked to check margin/cost limits on order submission/execution
- Broker fix to avoid having the wrong sign on short "Trades"
- Rework Trades commission deduction
- Additions to Position, Order to support broker new checks
- Add missing analyzers loop call to "_next"
- Observers loop handled in Strategy now (only object holding them)
- Observers reachable in strategy via new alias "observers" (in addition to
"stats")
- Cosmetic changes to analyer pprint
- Correction to Position.__len__ to work with negative sizes (short positions)
- Crossover defaults to true for plotting just like any other indicator
- "Exactbars" mode added which limits the amounts of bars to those needed by
each indicator. Disables runonce, preloading and plotting. It uses a
ringbuffer method
- Documentation/Samples directory (and hence doc fixes) rework
- Documentationn rework for direct execution of scripts against sample datas
16
- Multiple Data Strategy added as Sample
- Automatic import of flushfile
- Added LineForward as complement to LineDelay
- Correct double call to Analyzer._next
- Cover case in which a line from a data is directly assigned, avoiding the
binding to kick-in too early
- Correction in Accum indicator (typo line -> lines) and super addition to
WilliamsAD

- Added reversion to stage1 operator behavior when the strategy backtesting is
over
- Refactoring of minimum period calculation in LineIterator
- Refactoring of strategy minimum period calculation to allow indicator
injection
- Cerebro support for addition of indictors to inject into strategies
- bt-run rework to support multiple strategies (o none), observers, indicators
and analyzers with individual kwargs per entry
- bt-run rework of plotting to single argument with kwargs
- Corrected ill behavior when separatin multiple line objects passed as single
argument to an indicator which lead to multi-owner management for the 2nd
line and posterior
- Analyzer defines stubs for print pprint and get_analysis
- Addion of LineDelay opposite: LineForward to support positive (look/write
backwards) arguments in the line(period) notation
- Added datas and data alias in Analyzers