Canonical builtin checks for clang are to use
__has_builtin. Much less fragile than version checks.

https://code.google.com/p/webm/issues/detail?id=1082

Change-Id: I8151fb75899acdf1a935c23aad9441da99a9abcd

when configuring with mips32-android-gcc HAVE_MIPS32 would be set, but the
ndk does not set -mips32r2 for APP_ABI=mips which results in BSwap32 failing
to build; refine the check in endian_inl.h

Change-Id: I22893fe61f29111eb902d961b500b2174596268d

Eliminates the byte by byte read from bool decoder,  by reading
in a size_t and then shifting it into place.

Change-Id: I0ed8c7b6f942847e79cc90105dc1d2b5b3deb0d6

This reverts commit 9b4f9f45.

Change-Id: I23545ac8c7464127f7466fc6a58de517874fe0cf

Eliminates the byte by byte read from bool decoder,  by reading
in a size_t and then shifting it into place.

Change-Id: Id89241977103fc3b973e4ed172a5cbf246998e5d

Change the dir name to include more util tools.

Change-Id: Id5b16062803ce5eed872fe2edb36d7e56b32eed8