(changes in scanner intentionally skipped)

Move (and sometimes add) #include <config.h> at the top of
all *.c files.

Remove all #include ["<]config.h[">] from headers files.

Change-Id: I1df07602d0240affd95e12fccd122558300d2145

 - required by pseudo-random generator.

 - required by pseudo-random generator.

fixes #1428