Changed
- dependecy updates:
- Bump mocha from 5.2.0 to 6.2.0
- [Security] Bump lodash from 4.17.11 to 4.17.15
- Bump tslint-config-airbnb from 5.11.0 to 5.11.1
- Bump typescript from 2.9.2 to 3.5.3
- Bump @types/mocha from 5.2.5 to 5.2.7
- Bump tslint from 5.11.0 to 5.18.0