ping: install a pong handler Respond to server pings: https://xmpp.org/extensions/xep-0199.html#s2c ``` xmpp DEBUG RECV: <iq id="rr-1694698253331-17375542133555098656-wf3J7kbG6j8Ft5Vx0cMY99txsW8=-55238004" type="get" to="msantos@example.com/110052433108464573191602" from="example.com"><ping xmlns="urn:xmpp:ping"/></iq> conn DEBUG SENT: <iq id="rr-1694698253331-17375542133555098656-wf3J7kbG6j8Ft5Vx0cMY99txsW8=-55238004" to="example.com" type="result" from="msantos@example.com/110052433108464573191602"/> ``` Thanks @jessiehowell ! Fixes #9

Replace ctype usage The ctype functions are error prone. The argument is an int which must be in the range of an unsigned char and is interpreted based on the locale: These functions check whether c, which must have the value of an unsigned char or EOF, falls into a certain character class according to the specified locale. The functions without the "_l" suffix perform the check based on the current locale.

capsicum: disable fs writes Use RLIMIT_FSIZE to disable writes to the filesystem when stdout is not a regular file.

0.14.5: fix usage 

0.14.3: seccomp: add syscalls Add syscalls for Ubuntu 22.04.

0.14.2 Tag release for #6 Thanks @anjandev!