4.6.3 -> 4.6.4

Detects when str=mc is used in /ANS() and sorts the answer string
first for N_OF_M and STRING_MATCHING types.

4.6.2 -> 4.6.3

Memory leak problem, looks like it is in the deaalocation of capa_parse memory

4.6.1 -> 4.6.2

The Answer %d: %s message printed in verbose mode now prints numbers
in the 1-> range instead of the 0-> range

4.5.1 -> 4.6.1

problem number 5 is now a special problem used to decide anon exams.

modify saveAnonForm to pick whichever form has question 5 right, only ask 
when none of question 5 is correct

new error added E_GRADINGMETHOD for saveAnonForm

Creation of 4.5.1 from Bubbler 0.16

added the ability to have points and leafs of different values