Upgrade to Bootstrap 3.0.0 final
Remove minified versions of bootstrap files.
As this application is distributed as a packaged application, all the files will be zipped before transferring over the network. So the difference in size should not be significant.
When unzipped on the device, it makes a difference but I think it's not worth it for the moment.
It's still possible to switch to minified versions in the future, with a more intelligent packaging process