Make vectors use the context's i,j,k values to obtian TeX and string representations (Parser/Lists/Vector.pm didn't do this, and Value/Vector.pm didn't do it well.)
Merge pull request #13 from dpvc/vector-ijk

Make vectors use the context's i,j,k values to obtian TeX and string values
Merge pull request #14 from goehle/master

Essay Questions
Fixing some xss issues with sticky answers.
Fixed the xss stuff to work with gateways
Merge branch 'develop' of https://github.com/openwebwork/pg
Merge branch 'release/2.6' of https://github.com/openwebwork/pg
Merge branch 'release/2.6' of https://github.com/openwebwork/pg
Fixed overzealous commenting
Merge pull request #17 from goehle/master

XSS Fix