Yarn 1.5.1 comes with new features, improvements and bug fixes:
- 'yarn cache clean' multiple packages at once.
- Ability to store a built package in offline mirror.
- Implements 'yarn node' to call Node with the correct environment to run the application.
- Use full path to script when executing with run command.
Signed-off-by: Samuel Cecilio <firstname.lastname@example.org>