Move all third party code to a "third-party" directory.

Remove NOTICE file now that third party code is explicitly grouped.
Adjust build scripts to use the new third party code location and streamline
cleanup of dependencies managed by Ninja.
Package dependencies downloaded by configure.py are still in /vendor

On Monday, August 18, 2014, David Phillips <notifications@github.com> wrote:

> In .gitignore:
>
> >  /bower_components
> >  /node_modules
> > +/vendor
>
> If vendor/ is gone entirely, why do you still need the gitignore entry?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/youtube/spfjs/pull/56/files#r16381637>.
>


-- 
- Alex