(WIP) Issue 626 - default .claspignore

[PopGoesTheWza]

Fixes #626

• npm run test succeeds.
• npm run lint succeeds.
• Appropriate changes to README are included in PR.

[grant]

Let's be focused when we create PRs.
Only solve the issue, don't make any other changes.

[PopGoesTheWza]

I am focused, trust me. But since I am to switch while in the middle of another PR, I prefer to take the opportunity of minor fixes (TODOs, improved typings...) :-P

[grant]

Thanks for the PR. Please make the PR only include changes in these files:

src/dotfile.ts 
tests/commands/push.ts

Move the other changes to a different PR.

[PopGoesTheWza]

@grant I am not that fluent in Git, sorry. I have no idea how to move some changed files to another branch nor how to 'revert' part of the commits.

[grant]

No problem. I recommend always syncing with the latest master branch and working from there.

This may be useful:

https://medium.com/sweetmeat/how-to-keep-a-downstream-git-repository-current-with-upstream-repository-changes-10b76fad6d97