Chanjo-report

Changes
- improved phrasing of explanations and other translations

Added
- ability to determine lang by setting query arg in URL
- add uploaded date to report per sample

Changed
- rename "gender" as "sex"
- clarify explanations, rename "diagnostic yield"

Fixed
- update to Python 3.5 and fix travis test setup
- stay on "groups" route for PDF report

Added
- Customization options for report
- Link to PDF version of report

Changed
- Updated chanjo requirement

Fixed
- Include missing template files in dist
- Include more translations

Changed
- Adds support for Chanjo 3
- Layout of report is more condensed
- Updated APIs across the board

Fixed
- Fix bug in diagnostic yield method