Merge changes from topic 'split-python'

* changes:
  Add build.py and fix up build-python.sh.
  Move build-python.sh to toolchain/python.
tree: 0d1fc87af7c2b20bd25aec4381754c804bb98485
  1. Python-2.7.5/
  2. build-python.sh
  3. build.py