Merge pull request #6 from ryanlntn/feature/gitkeep

Further refine git setup.
Get db:create and db:dump working for mysql root user
Check if sudo before setting folder permissions. Complain if not.
Start work on db:download and db:upload.
Merge pull request #7 from ryanlntn/feature/db

db:create and db:dump
Bump version to 0.2.3
Merge pull request #8 from ryanlntn/patch-1

Bump version to 0.2.3
Dusabked symlink