chore(CI): updates AppVeyor and Travis CI to pull file resources

[hunterlester]

@joshuef PR updated to include AppVeyor config.
Published released based on tag push: https://github.com/hunterlester/safe_browser/releases/tag/peruse2

[bochaco]

@hunterlester @joshuef , I'm not sure what's the state of this, is this still ok to merge?

[hunterlester]

@bochaco Still investigating why Github credentials are working on AppVeyor but not on Travis for pulling for release_config. This was put on pause to address other tasks.

[hunterlester]

When building on my fork of safe_browser in AppVeyor, the Github credentials used to pull from the release_config repository are successful.
However when building from this repository in AppVeyor, Invoke-WebRequest returns 401 Unauthorized.
I need help understanding why this is the case.
Same exact access_token being used.

Travis builds between my fork and this repository are fine, when using the same credentials to pull from release_config.

[hunterlester]

Resolves #440

[hunterlester]

I'll resume work on this once #397 is complete, which involves deprecating the use of so-called secure environment variables in Travis.

[joshuef]

just to be clear, this isnt ready for review then @hunterlester ? If that's true can you update the col in the project please.

If it is ready... What are we calling success here? I'm not sure what to be checking for.