LDEV-1676: Adding a new column in forun that shows if any of a learner's files have been marked.
Also fixed a problem with the view forum screen in teacher mode. When accessed from monitoring, the teacher was able to see and edit the learner's reflection. Now when the screen is accessed from the summary screen, the reflection cannot be seen (as this is primarily for marking). When the screen is accessed from the learner progress screen the reflection can be seen but not modified.
LDEV-1255: Moving the code for stopping jsps caching to a new custom tag, so that it can be applied consistently across all pages. Moved the utf-8 statements to the same tag so we don't have to remember to put them in all pages.