check_readonlyfs: let the os free the memory at exit

Signed-off-by: Davide Madrisan <davide.madrisan@gmail.com>
fix build warning about a missing header file

Signed-off-by: Davide Madrisan <davide.madrisan@gmail.com>
make dest: also package 'mountlist.h' in the generated tarballs

Signed-off-by: Davide Madrisan <davide.madrisan@gmail.com>
bump to version 1

Signed-off-by: Davide Madrisan <davide.madrisan@gmail.com>