enabled displayCSV with --csv (or -C) argument
--csv: VERSION;HOSTNAME;TTL;ENDPOINT
* updated the version number to v0.84 in configure.ac
* --csv uses MTR.{MTR_VERSION} format
updated --csv format: VERSION;TIMESTAMP;HOSTNAME;TTL;ENDPOINT
updated --csv format: VERSION;TIMESTAMP;HOSTNAME;TTL;ENDPOINT;PING(ms)
updated --csv format: VERSION;TIMESTAMP;HOSTNAME;TTL;ENDPOINT;ASN;PING(ms)
--csv allows multiple service names as arguments
updated --csv format: VERSION;TIMESTAMP;STATUS;HOSTNAME;TTL;ENDPOINT;ASN;PING(ms)
STATUS field is hardcoded to "OK" for now; not sure what "FAIL" would mean
added --filename=FILE option
service names read from this file are allocated in a linked list
multiple service names are only accepted with --csv flag
without --csv flag, the first service name is used
when looping on a list of service names with --csv, do not exit on the first
failure; instead write the error on stderr, skip that service names and move
on to the next service name in the list
added file locking capability if --csv results are written to file
BUGFIX: updated the --csv format for when AS lookups are disabled
added Vaibhav and Jurgen tot authors as requested