added path to PCC macros (now in OPL) to defaults.conf
added booktabs, tabularx, and colortbl to LaTeX preamble
added packages to hard copy production
Merge pull request #449 from apizer/bugfix_master

Replace line 48 of /opt/webwork/webwork2/lib/WeBWorK/File/Classlist.pm

I tested this by importing a classlist file with extra whitespace.  The fix works as intended.
Merge pull request #458 from paulvojta/develop

Sort library directories in LibraryBrowser3
recovered site_info.txt
Chage color.js to use class names rather than explicit colors.
Update color.js to color ans_array and MultiAnswer answer blanks when singleResult is 1.
Fixed a bug where I used count instead of max(list) and it was causing the dropdowns to not have enough numbers.
This pull request corresponds to the read_whole_problem_file pull request for PG.  It also has bugfixes for a corner case PGProblemEditor button.
Fix bug in grading where some gateway problems use weighted grader.
Also, round off scores to 5 decimal places.
Caught one more instance where score could be rounded.
Merge branch 'develop' of github.com:openwebwork/webwork2 into develop
Merge pull request #466 from jwj61/develop

Fix gateway quiz bug and rounding

I checked this with a weighted answer problem.  The fix does correct the score reported at the top of the page.  I also checked the outputs and the score was formatted correctly.
Add coloring to GatewayQuiz, and make color.js take the correct/incorrect names as parameters rather than through hidden input fields (that seems a reak hack).  Modify Problem.pm to call color_input using the parameters rather than hidden fields, and fix up some spacing issues.
Fix undefined ARRAY reference in gateway quiz.
Fix problem with coloring multiple problems in a quiz, and with empty arrays of colored answers
Color inputs only when results are to be shown (this takes showPartialCorrectAnswers and the gateway parameters about showing scores into account).
Merge pull request #460 from dpvc/patch-input-colors

Patch for input colors (correct/incorrect)
removed dvips option from amsart documentclass; this looks like a remnant option from some time in the past when latex was used instead of pdflatex. Its presence causes colors to render badly in a hard copy