DB columns userid renamed to authorid or reviewerid to make the value
clear. Improved manual allocation UI. Raw grades are stored as numeric
values from 0.00000 to 100.00000 (instead of the current 0 to 1) to be
more precise. Started to work on the Grading report (it est the overall
report of all grades form submission and grades for assessments).
Every action script in 99% starts with fetching course, course module,
and module instance record. Workshop class will keep the reference to
the course record in courserecord public member variable (do not confuse
with course integer property).
Initial sketches of random allocator. Refactoring of the rest of the
module here and there. Also, this commit removes trailing whitespace and
running empty lines.