Revisions to accommodate variations in parameters
passed by various LMSs and to improve coordination
with Login.pm and Logout.pm.
Add the script ww_purge_old_nonces for purging old nonces
to the webwork2/bin directory.
readmes?
Merge commit 'cc5ea9277ee2efe802d6431f6053a2d00d503f70' into dev

Conflicts:
	conf/global.conf.dist
	lib/WeBWorK/ContentGenerator.pm
Merge remote-tracking branch 'wheeler/master' into fix_openwebwork
Merge commit '416cdab2d605d4a30bcf3a14483c9236e31c822f' into dev

Conflicts:
	conf/global.conf.dist
Added an example to the documentation for configuring module loading in global.conf.dist
Merge commit '27cda6d9852d3299b08e6c704373aa26a477a90b' into dev

Conflicts:
	conf/global.conf.dist
	lib/WeBWorK/ContentGenerator.pm
Protect against syntax errors which kill the PG translation early so no pgcore object is produced.

I believe this was fixed earlier and somehow that fix got overwritten.  I'll go back
and look at where the overwrite occured when I have time.  What is in place
now is definitely a hack -- there are multiple copies of the error messages for example.
But at least it doesn't die outright with no useful error messages.
Roll back ProblemSetList.pm in order to compare with ProblemList2.pm

This restores the old behavior of the first HomeworkSet Editor so that we can
compare it more easily with the new version(s).
Complete rollback of the Homework sets editor. (ProblemSetList.pm)

The original versions of the Homework sets editor and of the Classlist editor now correspond
to the look before the maketext() additions were made for localization and before the changes were made
to try to improve accessiblity.
Fix typo in Grades.pm that was causing global problem data to sometimes be stored in the problem_user record
Correct bug where Grades.pm writes problem_user data when it should not

Fix Grades.pm so that it only updates problem_user records if they are actually broken
Merge pull request #13 from dlglin/master

Fix typo in Grades.pm that was causing global problem data to sometimes be stored in the problem_user record
Merge pull request #14 from mgage/master

Changes from WeBWorK::Rochester
Fixed uninitialized points variable
Changed code to start with adding Students to the ClassList 3 editor.  The Classlist 3 editor now has a button to add student, but this is just used as a test case current.
Discover the server_root_url from the configuration file instead of setting it manually in WSDL.pm
Remove debugging message about pgerrors
Continued to update CL3.  As test, there is a button to add a student (this is hard coded to test).   In addition, had to change DB.pm to fix an error while deleting a student in CL1.