Merge change 3175 into donut

* changes:
  page load perfomance improvements... remove the lists.js file from the <head>, which slows down page load a lot (over 300K), and instead load it dynamically on page load. also remove navtree_data.js from the <head>, which also slows the load and is only used in the reference when in tree view. This file is now loaded during the initialization of the nav tree.
tree: 010cf65ba44e9873ab3a9b430ab5460ed3f43d53
  1. core/
  2. libs/
  3. target/
  4. tools/
  5. buildspec.mk.default
  6. cleanspec.mk
  7. envsetup.sh