Fix pixel_ssim_end4 asm function for x86_64 systems
opencl: Check return value of fread()

common/opencl.c:138:10: warning: ignoring return value of 'fread', declared with attribute warn_unused_result [-Wunused-result]
build: Set all ASFLAGS from within configure

This is how all other toolchain flags are handled.
configure: Don't check for libavcore

libavcore was a never-released bad idea with a short lifespan.
Delete all SPARC optimizations

SPARC has been obsolete for a long time and makes little sense as a
H.264 encoding platform.

Also update authors file.
build: Add dependencies on x86inc.asm/x86util.asm for all .asm files

This is a little bit overzealous, but errs on the side of caution.
Generating full dependency information is also possible, but slightly
slows down the build as YASM cannot do it as a sideeffect of compilation.
configure: Drop workaround for obsolete gcc 4.2 on ARM
build: Simplify phony target declaration with wildcards

Also add etags to list of phony targets.
build: Replace cltostr.pl by a shell script

This avoids a dependency on Perl to build OpenCL support.
configure: Add -Wno-maybe-uninitialized to CFLAGS

The warnings generated by -Wmaybe-uninitialized are mostly spurious.
MSVS 2013 Update 2 support

The first MSVS compiler C99 compliant enough to build x264.
Use `CC=cl ./configure` to compile with it.
Fix frame-packing==5 with some decoders

The spec mandates that frame-packing==5 requires the SEI on every frame that
begins a view sequence (i.e. the input frames L0-R0-L1-R1 have 4 view sequences,
but if reordered by the encoder to L0-L1-R0-R1 there are now 2 view sequences).
For simplicity, we write the SEI on every frame.

This fixes frame-packing==5 3D playback on some decoders (PlayStation 3, Sony
W8 series, possibly others).
Remove meaningless use of abs()
mp4_lsmash: Use new I/O API instead of deprecated one.
Fix b-pyramid MMCO remove for frame-packing==5
AVC-Intra: fix compatibility with Avid Transfermanager
x86: Fix SIGILL in high bit-depth intra_sad_x3_4x4_sse2

An SSE3 instruction was used in an SSE2 function.
Fix incorrect row predictor addressing

Somehow managed to not cause things to explode, but was clearly incorrect.
Might improve VBV in some cases to have this working right.
Check malloc during frame dumping
Check pf_log is set in validate_parameters

Help remind people to call x264_param_default in case they didn't read the
documentation.