Fix warning messages. Add formula notation. Now picks random float values even if edge values seem integers (like 10.00 or 20.0)
Remove c_id warning message. Now if a calculated question is answered it can be edited - refs #7212
Remove several warning messages. Now if a calculated question is answered it cannot be edited. Resolve trad4all conflict when merging - refs #7212
Fix get_course_table() and course_code issues - refs #7212
Fix a little big bug - refs #7212
Remove var_dump - refs #7212
merge
Merge branch 'ilosada-7212c' into 1.9.x