making sure library up to date
Merge branch 'master' of git://github.com/openwebwork/webwork-open-problem-library
Fixing tags
Changes from OPL 3 workshop, Charlottesville VA
Updating taxonomy files
But with weighted answer grader, taxonomy2 update
Tiny change.
Fixing cross-listing in Taxonomy2, fixing a duplicate
Merge branch 'master' of github.com:openwebwork/webwork-open-problem-library
Fix typesetting error
Correct problem wording and solution text.
Change parameter values to ensure given function is a valid density
function, improve formatting.
Fix opl tag
Merge branch 'master' of github.com:openwebwork/webwork-open-problem-library
Deleting unused files
For the first two questions, add hint if the student gives the limit instead of the function for which the limit is being taken.
Reword the hint slightly, and eliminate unnecessary loadMacros files.
Merge pull request #66 from paulvojta/master

Add a hint for the first two answer blanks
New Problems
New Problems in Contrib

Re-arranged where the new problems are.