Merged from MOODLE_14_STABLE:

Merged from MOODLE_14_STABLE:

Fixes to fix_course_sortorder() and course/category.php pages. (martinlanghoff)

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-160
  Minor fix: moodle would crash on high number of courses when doing course creation -- should be more scalable now

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-164
Fix a bug I have introduced in fix_course_sortorder() - v2

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-210
  Fixed nested transaction in fix_course_sortorder()

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-215
  Performance and memory usage fixes for re-sort courses function

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-268
  Major performance and correctness improvements in the functions that move courses up and down, reorder by name, and in fix_course_sortorder(). All now assume course-sortorder is unique (this is enforced at the DB)

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-332
  fix_coursesortorder() bugfixes and logic simplification

arch-eduforge@catalyst.net.nz--2004/moodle--eduforge--1.3.3--patch-333
  courses listing enhancements: bugfix on re-ordering, keep the right page on actions