fdm: Update to 2.0

Removed upstream patches.

Fixed up Makefile slightly as configure bugs seem to have been solved.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

mail/fdm/patches/010-ntop-fix.patch

@@ -0,0 +1,9 @@
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -123,6 +123,3 @@ endif
+ if NO_STRTONUM
+ nodist_fdm_SOURCES += compat/strtonum.c
+ endif
+-if NO_B64_NTOP
+-nodist_fdm_SOURCES += compat/base64.c
+-endif