* Avoid packaging yarn.lock
Since the shrinkwrap is what we want everything to use.
* Build with npm
It seems we stuck with yarn because npm was giving us errors but I will try
sorting it out now so we can build with npm as originally intended.
* Remove build from source
Not using CentOS 7 anymore so based on the comment we no longer need
this. Keytar seems to install fine now.
* Update missed Node version
These numbers are all over the place.
* npm_config_arch must be lowercase
* Patch out Kerberos
I am not sure exactly how it is used but I think it is not a path code-server
worries about, at least not right now. Just going to patch it out rather than
figure out how to build it on armv7l but we can revisit later.
