- made include path relative for consistency with other dyncallback files


git-svn-id: http://dyncall.org/svn/dyncall/trunk/dyncall@1567 c71cb566-5a31-4692-9165-cf76bdc42cab
- more consistency for include paths



git-svn-id: http://dyncall.org/svn/dyncall/trunk/dyncall@1568 c71cb566-5a31-4692-9165-cf76bdc42cab
- nullptr guard for platform consistency for dynload's dlclose call (at least bsd and linux behaviour differed, and POSIX doesn't explicitly specify); now matching behaviour of free() calls
- rbdc version increase


git-svn-id: http://dyncall.org/svn/dyncall/trunk/dyncall@1570 c71cb566-5a31-4692-9165-cf76bdc42cab