Also return a subscription that can be unwatched instead
of returning an id that is later passed to $native.unwatchPath
along with the watched path.
This allows specs to pass when run from a symlink'ed folder.
This also adds a `readObject` method to `fs-utils`, which loads the
file as cson if it ends with json/cson, and otherwise tries to load
it as a plist.
For now, we're using my fork which is tolerant to a node environment
with a `window` global and suppresses some logging of non-fatal
errors. If the upstream author accepts my pull requests we can switch
back.
fs-utils.absolute() now recreates the same behavior
but instead using fs.readpathSync().
This brings over the same behavior for special handling
the /private directory for now.
