Replace include() by require().

The include() function is not defined here.
Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev into ww2.5.2
Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev into ww2.5.2
Add more comments to configuration files
Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev into ww2.5.2
Merge branch 'ww2.5.2' of https://github.com/openwebwork/webwork2-dev into ww2.5.2
Added the feature that the help box on a page doesn't automatically open after closed 3 times.
Add color package to TeX for inline equation generation
Merge commit 'df6432bbff5a9bae48381d1f96f826af54149f28'

Conflicts:
	PG_VERSION
	conf/localOverrides.conf.dist
	lib/WeBWorK/Authen.pm
	lib/WeBWorK/ContentGenerator/Instructor/ProblemGrader.pm
	lib/WeBWorK/URLPath.pm
A bug fix to bring back the Homework Editor 3.
Merge pull request #20 from whytheplatypus/master

requirejs and homework sets editor 3
Add all of the updates from the WeBWorK::Fitchburg code camp

Merge branch 'ww2.5.2' of https://github.com/mgage/webwork2-dev into ww2.5.2

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.
Merge commit '0e06d71eff1c6bf0dde487d0f887f1d9f10e2860'

Conflicts:
	htdocs/js/apps/problemsetlist/problemsetlist.js
	lib/WeBWorK/URLPath.pm
bug fixes to Homework Editor 3 and improved functionality including some preliminary merging of the library browser with the Homework editor.
Continued Development of the Homework Editor (now named Homework Manager).  This includes countless bug fixes and the integration of the library 3 browser into the Homework Manager.
Added functionality to Homework Manager Page (formally named homework Editor 3) and lots of bug fixes.
Fixed some bugs in the ProblemSets page (although removed some of the functionality).
Streamlining all of the new code in the interface.
Change the interface of Homework Manager to a pulldown list of views instead of the tab views to save space on the page.  For some reason most of the core model and view js files weren't included.
Added missing files from the previous commit
Added files not be tracked and deleted old files to try to merge with ww2.5.2
A few other files to get the old Library Browser working.