Update to HG changeset 1048e4dca434
Update to use gzcat instead of zcat on Mac
Update to HG changeset 86a8d1d467c8
binutils/binutils: add version 2.23.2
cc/gcc: update Linaro GCC revisions for 2013.07
Does NOT remove install directory while restoring pre-build state
Disable removable test when install directory is symbolic link