Upgrade Linux host toolchain from glibc 2.11 to 2.15
am: 1702a2161c

Change-Id: I1aa6eaa83794ec80861a833c5f6ca138d2adeb3a
tree: 1ce84d3ec0adabc45e0b15a46178d3063659fa07
  1. binutils-2.27/
  2. build.py
  3. OWNERS
  4. pylintrc