Merge branch 'release/v0.3.0' into develop
chore(*): minor hotfix after release
chore(.): setup.py and dockerfile fix, pyscience docker image
chore(*) various fixes and adaptation to insights evolutions
chore(.): fix dockerfile, improve core/engine api
chore(*): hot fixes after insights push
chore(*): dna factorization
feat(*): context api and hybrid data sources
feat(*): new datasource api with transparent backtest to live transition, explicit market scheme structure and management, various improvements related to data and apis
chore: FIX #9 #10, new README and Dockerfile

* #9: Simpler and safer function that lets the caller process the result
* #10: Default timezone setting if LANG isn't set
* Dockerfile now uses hivetech/base, which is hivy compliant
* README delegates to the doc most of its content
chore: more tests and some cleaning

* Analysis module moved to insights (with its dependencies)
* First tests for api and data modules
* Minor improvements based on this tests
feat(data): more tests, better data sources api

Data sources frequency are now harmonized between backtest and live
sessions. If no data is available in backtest mode, it will extrapolate
new values.
chore: fix packaging

* Install cython before the package
* use python setup.py for installation on CIs
* remove dirty insights dependencies from intuition.api.algorithm
* remove deprecated heavy_google_snapshot
* remove useless intuition.data.remote.Data class
* fix pypi files copy error
* move generic utilities to dna
* pop useless orders returned by the portfolio optimizer
* fix logs directory creation when installing
* bump dna 0.0.3 dependency
chore: minor cleanup before 0.4.0 release

* remove `freq` from build_trading_timeline
* fix coverage support for shippable
* fix coveralls support for drone.io and others
* fix zipline version dependent tests
* more comments in code
* bump latest packages version
Merge branch 'release/v0.4.0'