can specify last name using brackets
add two requests to block
Make putDocument sync and handle the put result right away
temp push
[2409]add more excluded requests in adminActivityLogPage

fixes #2409
add size limit per enrollment
add test to cover "Failure case: exceed size limit per enrollment"
update test of size limit per enrollment to boundary test
Merge pull request #2425 from TEAMMATES/Issue2424

Student not appearing in search results #2424
Merge branch 'master' of https://github.com/TEAMMATES/repo into Issue2386
fix tests
temp push
Merge branch 'Issue2386' of https://github.com/TEAMMATES/repo into Issue2427