.nvmrc should be searched by traversing the directory tree up

[josalmi]

It would nice if .fnmrc file in parent directory would be applied to all child directories. This can be implemented by traversing the directory tree up while searching the .fnmrc file.

Example:
mkdir -p parent/children
cd parent
echo "6.9.3" > .fnmrc
node -v # Should be 6.9.3
cd children
node -v # Should also be 6.9.3

See NVM

[jorgebucaran]

Related #78.

[jorgebucaran]

@josalmi I finally did it. e2f6fb9 adds this behavior. It works by finding the nearest .nvmrc file, traversing the directory tree from the current working directory upwards.

[josalmi]

Superb! Thanks for all the good work you are doing for the community.