updated news
Merge branch 'master' into maint
Avoid warnings on empty printf statements - Ricardo Maraschini
Update comments

1. libtab is now bundled, so suggest to enable it rather than install it
2. "parse-ini" feature has been called "extra-opts"
check_hpjd - Added a switch for port specification. Defaults to 161.
Added check_hpjd port option to news and clarified the port usage error.
Missed adding the compiler define changes in check_ntp_time when it was added to check_ntp.c.  Thanks for the heads up waja.
Added test for check_file_age.pl option --ignore-missing - thanks waja.
Merge branch 'master' into maint
Updated NEWS