doxygen.sh: use relative script's path to call apidoc_full.sh

Signed-off-by: Valerio Setti <[email protected]>

scripts/doxygen.sh

@@ -13,7 +13,7 @@ if [ -d library -a -d include -a -d tests ]; then :; else
     exit 1
 fi
 
-if ./framework/scripts/apidoc_full.sh > doc.out 2>doc.err; then :; else
+if $(dirname "$0")/apidoc_full.sh > doc.out 2>doc.err; then :; else
     cat doc.err
     echo "FAIL" >&2
     exit 1;