[Dillo-dev] dpid patches

One patch for using random instead of rand. [1] Reordered headers and removed old comments (what is ckt_write?). umask is actually in sys/stat.h and not in unistd.h Also removed expired TODO item about dpi_service.[c|h]. [1] https://www.securecoding.cert.org/confluence/display/seccode/MSC30-C.+Do+not...