Correct spacing
Merge branch 'release/2.8' of https://github.com/openwebwork/webwork2 into release/2.8
Add help link for "levels" in the advanced search page in library browser 1
Fix bug when creating sets.
Make solution knowls work in library browser 1
Change Path ... to Show path/Hide path.
Merge pull request #108 from mgage/release/2.8_jj

Release/2.8 jj Fixes bugs in library browser 1.