big update and cleaning

README.md

benchmarks/img_gray.c

benchmarks/lmore-hydro.c

benchmarks/matmul.c

benchmarks/matmul_exe

build.sh

image-bench/build.sh

image-bench/img_gray.c

image-bench/img_hi_pass.c

image-bench/img_mean_blur.c

...ence/sim-LLoops_12_firstDifference-arm-nvec/citations.bib

...ference/sim-LLoops_12_firstDifference-arm-nvec/config.ini

...erence/sim-LLoops_12_firstDifference-arm-nvec/config.json

...fference/sim-LLoops_12_firstDifference-arm-nvec/stats.txt

...rence/sim-LLoops_12_firstDifference-arm-vec/citations.bib

...fference/sim-LLoops_12_firstDifference-arm-vec/config.ini

...ference/sim-LLoops_12_firstDifference-arm-vec/config.json

...ifference/sim-LLoops_12_firstDifference-arm-vec/stats.txt

...ence/sim-LLoops_12_firstDifference-x86-nvec/citations.bib

...ference/sim-LLoops_12_firstDifference-x86-nvec/config.ini