creationix/nvm — pull request #566 by xcambar (2014-10-31 12:10:50+00:00)
Title: [install script] testing NVM_DIR

After the PR:
* Uses a function to define the install dir (aka `NVM_DIR`)
* Does not replace an empty yet defined `NVM_DIR` variable, but uses a default value instead
* `NVM_DIR` is used at a single point in the install script