ManUtils: Move, use ExtUtils::MakeMaker and get rid of AnyEvent

I mean, I like AnyEvent, but this can be done with core modules as well
(albeit somewhat more verbose and error-prone...)

ManUtils/ManUtils.xs

@@ -0,0 +1,28 @@
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+
+struct StringWrap {
+  char *buf;
+  unsigned long long len, cap;
+};
+
+struct StringWrap grotty2html_wrap(const char *, unsigned long long);
+void grotty2html_free(struct StringWrap);
+
+
+MODULE = ManUtils	 PACKAGE = ManUtils
+
+SV *
+html(str)
+  SV *str
+  CODE:
+    STRLEN len;
+    char *inbuf = SvPV(str, len);
+    struct StringWrap buf = grotty2html_wrap(inbuf, len);
+    SV *dest = buf.len ? newSVpv(buf.buf, buf.len) : newSVpv("", 0);
+    grotty2html_free(buf);
+    SvUTF8_on(dest);
+    RETVAL = dest;
+  OUTPUT:
+    RETVAL