Merge branch 'release/0.2.0' into develop
feat(sources): rethinkdb data source
feat(*) context and source new apis
feat(*): dynamic report generation, mail and hipchat plugins, automatic doc generation, new data source api
chore: Yahoo source, migrate readmes to doc
chore: more tests, moved default_middlewares here, new CI setup
chore: 25% more test coverage, fix assets installation, intuition-db refactored in class
chore: database plugin module, more tests, fix CI
chore: pre release of v0.3.0

* database plugin supports full perf tracker and recorded vars
* testing and validation framework
* clean sata source _review
* fix google new api call limitations
* can use google and yahoo as source for live equities
* update dependencies versions
* new images and values for report
feat: better reports

* Summary informations
* Human readble data, images
* Legal notice
Merge branch 'release/v0.3.0'