Merge branch 'ff/c99'

* ff/c99:
Remove all void-pointer arithmetic.
Change types used in bitfields to be `int's.
Don't use empty structure initializers.
Cast pointers to `void *' when used in a format.
Don't instantiate structures with FAMs.
Initialize FAMs using `FLEX_ARRAY'.
Remove ranges from switch statements.

diff --cc diff-lib.c
Simple merge

diff --cc http-push.c
Simple merge

diff --cc tag.c
Simple merge