Generate capiinit.8 at compile time from capiinit.8.in using 'configure' to use the configured path for capi.conf instead of the hard-coded /etc/capi.conf. The necessary changes took place in configure.ac & autoreconf
* remove unnecessary macros & symbols * add evaluation for I4LCONFDIR
* rename configure.in to configure.ac for recent autotools * require autoconf 2.68 * update/remove obsolete macros * quote arguments to AC_../AM_.. macros * fix typo in variable definition