Make provisions for more default quant tables
Add new quantization tables

New quantization tables tuned for PSNR-HVS are added.
Per-coefficient lambda weights are now derived based on the
quantization table entries.
Add quantization tables

Add various quantization tables suggested in #84
Still need to do chroma
Adjust lambda parameters

Parameters were retuned for grayscale and quality range 0-100
Add switch to cjpeg to select quant table

Replace -flat command line argument with more generic -quant_table
argument that selects one of several predefined quantization tables
Merge branch 'master' into qtable

Conflicts:
	cjpeg.c
	jcdctmgr.c
	jcparam.c
	jpeglib.h
	rdswitch.c
Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran.
Merge pull request #123 from dcommander/cjpeg-djpeg-jpegtran-version

Print the library version and exit whenever -version is passed to cjpeg, djpeg, or jpegtran
Clean up qtable code and change defaults
Merge branch 'qtable'

Conflicts:
	jcparam.c (resolved)
Fix C comment style
Remove access to parameter that shouldn't be exposed
Use single parameter for DC scan opt mode

JBOOLEAN_ONE_DC_SCAN and JBOOLEAN_SEP_DC_SCAN are merged into a single
parameter JINT_DC_SCAN_OPT_MODE
Default behavior is modified to use one DC scan per component
Add documentation for mozjpeg

A brief explanation is provided for the parameters introduced in
mozjpeg
Wordsmith mozjpeg README file
This includes more descriptive text for the project summary (the same
text that is in the package descriptions), a more thorough description of the
libjpeg API extensibility framework, reformatting to improve readability
(particularly on 80-column terminals), and numerous grammar tweaks.
jpegyuv: fix unused but set warning
Bump mozjpeg version to 3.0
Merge pull request #131 from tmatth/unused_but_set

jpegyuv: fix unused but set warning
Merge pull request #126 from dcommander/doc-tweaks

Tweak mozjpeg README file
Fix argument name mismatch #128