I really liked the changes, especially the loading indicator.
On the side note, I really feel that there should be some sort of "package file" on each sublime installation. Something like a bower.json or package.json. It'll help us to sync / move settings easily.
Moreover if it is coupled with a simple command to install all packages in that file, it'll be even better.
The Package/User/Package Control.sublime-settings file may be what you are looking for. It tracks your settings, but also your installed packages. If you sync that to another machine that has Package Control installed, PC will install any missing packages the next time Sublime Text starts.
On the side note, I really feel that there should be some sort of "package file" on each sublime installation. Something like a bower.json or package.json. It'll help us to sync / move settings easily. Moreover if it is coupled with a simple command to install all packages in that file, it'll be even better.