Javascript prettier config fails with nested node projects (using different config)

[ChrisHubinger]

When the working directory is not the root of the project the prettie intigration fails becaue it does not use the prettier command "closets" to the source file edited:

- proj1
|- test.js
|- node_modules/.bin/prettier
- proj2
|
|- node_modules/.bin/prettier
|
- node_modules/.bin/prettier

when calling :Autoformat in file test.js the intigration needs to make sure that the prettier in proj1/node_modules/.bin/prettier is called not the one in the top level node_modules folder so that project specific settings are used.

Basicly the same logic i've done with the eslint_local intigration.
I'll try to come up with a patch for this in the next few days.

[chtenb]

There is another PR in the making about prettier. #235
Be ware of conflicts

[chtenb]

Related or duplicated: #236

[chtenb]

About the logic in eslint, there is a PR in the making that aims let eslint do all the work of find its config files. You might want to look at that and/or consider this approach for prettier.