This commit renames LIBVPX_TEST_DATA_PATH to LIBAOM_TEST_DATA_PATH,
with a work around for working with jenkins environmnet variables.

Change-Id: If664ce57e25ad2af8121d1b578bf64043f0baa2a

Before this change, gm parameters were being written to the
bitstream for all frames, but only read for inter only frames,
causing a bitstream error.

Change-Id: I63b8e2fdf6358e07cc00718de04cc399809bde37

Change-Id: I7a04beb83095e5c0821048909f81f45be8b5eee3

test/cx_set_ref.sh: replaced by test/aomcx_set_ref.sh
test/vpxdec.sh: replaced by aomdec.sh

Change-Id: I74136d311eee7666e08ed8f573a17f810992fc52

Change-Id: Idb2cf2555bcbe04a6650c492a3a714d7d5836b67

Change-Id: I16469062853c101965f56002be30ebc5823975b1

Change-Id: I25dc61bab46895d425ce49f89fceb164bee36906

* Move clipping tests from inside to outside loops
* Let sizex and sizey to clpf_block() be the clipped block size rather
  than both just bs
* Make fallback tests to C more accurate

Change-Id: Icdc57540ce21b41a95403fdcc37988a4ebf546c7

Change-Id: Ia69bad44e47509208e3b9d306165d0872d4e92f3

Change-Id: I7f691a0ae27f06ef3d727764829a60a8ffc509eb

PSNR YCbCr:     -0.01%     -0.06%     -0.17%
   PSNRHVS:      0.01%
      SSIM:      0.03%
    MSSSIM:      0.00%
 CIEDE2000:     -0.05%

Change-Id: I1205c021bfc5cee6f80344fec92aabb529af9bd1

When CLPF was extended to chroma, the chroma RDO accidentally
discarded the optimal block size found in the luma RDO.

PSNR YCbCr:     -0.25%      0.05%      0.06%
   PSNRHVS:     -0.19%
      SSIM:     -0.36%
    MSSSIM:     -0.23%

Conflicts:
	av1/common/clpf.c

Change-Id: Ie49cd30f9276a311ada88cb2f13d14757617f030

Previously, only the motion vectors were being stored. This caused
a mismatch in the global motion experiment, which needs this
mode information to decide whether or not to use the gm parameters
in reconstruction.

Change-Id: I58cde750ec06587dbfb8d65b07c15a67b7d6b1f6