Add Chromatic.pm and chromatic/color.c to release/2.8.

These are used in some graph theory problems.
Update VERSION
Merge pull request #63 from mgage/release/2.8_fixLinearProgramming

Release/2.8 fix linear programming
Merge pull request #65 from mgage/release/2.8_fixChromatic

Add Chromatic.pm and chromatic/color.c to release/2.8.
Fix conflicts in Chromatic.pm file
Fix conflicts in Chromatic.pm
Merge branch 'release/2.8_OctoberDevelopUpdate' of https://github.com/mgage/pg into release/2.8_OctoberDevelopUpdate
Merge pull request #66 from mgage/release/2.8_OctoberDevelopUpdate

Release/2.8 october develop update
Fix Chromatic.pm again
Fix resetting of context flags when using Compute (they used to leave reduceConstants and reduceConstantFunctions incorrectly set)
Add correct_ans_latex_string to values not to be inherited (fixes wrong display when a Computed calue is used in a perl expression)
Fix the ijk() method to honor the texStrings/normalStrings value, and also accept a 'string' or 'TeX' value as a parameter
Added codeshard class to answer arrays so that they can be attached to
by mathviewer
Merge pull request #70 from goehle/codeshard

Class "codeshard" added to answer rule extension (for MathView).

Looks fine.
Merge branch 'release/2.8' of https://github.com/openwebwork/pg into release/2.8
Fix TeX output so that it matches HTML output (apply math_ev3 to it).
Add most recent version of compoundProblems macros
Fix AskSage to work with the accepted_tos option, and to print any errors.

With sagecell.sagemath.org, the user will now have to specify accepted_tos=>true, which indicates their agreement to the server's terms of service.
Make the sage interface support getting back multiple values in json format

Now, any values you want back, put them in the python WEBWORK variable.  The return from AskSage is a hash corresponding to WEBWORK.
Merge pull request #71 from dpvc/hotfix/2.8-PGML

Fix TeX output so that it matches HTML output (apply math_ev3 to it).