ARM Compilation

don't ignore malloc failure in cJSON_PrintBuffered

Reformat cJSON_Utils.c and test.c

NOTE: This can change the assembly slightly, in my case it reordered two
instructions. This is due to the change from:

    which = (10 * which) + *pointer++ - '0';

to

    which = (10 * which) + (*pointer++ - '0');

This means that after the change, the subtraction runs before the
addition instead of after that. That shouldn't change the behavior
though.

Remove redundant test from cJSON_AddItemToArray

The test for whether "c" is null is redundant.  Since this is the else case of "(!c)", and the only way "c" is changed is by the instruction assigning it "c->next" on the condition here, simply verifying that "c->next" isn't null is sufficient.

Allow for alternative archive tool when using make.

Add const qualifiers

Functions like cJSON_Print do not and should not modify the object passed
to them.

Reformatting code