Add build-aux/ar-lib to .gitignore
AM_PROG_AR added for the newest automake

Needed on Fedora 18, at least. Will generate a warninig on older platforms,
like EL6, but will not prevent build.

Fixes these error messages during autoreconf:

    linking libtool libraries using a non-POSIX \
    /usr/share/automake-1.12/am/ltlibrary.am: archiver requires \
    'AM_PROG_AR' in 'configure.ac'
Fix support for setting ACL through udev

Needs recent udev (>= 188) that has ID_SECURITY_TOKEN in 70-uaccess.rules /
70-udev-acl.rules.

No longer uses the deprecated udev-acl tool for setting ACL's on the
/dev/input/event* files created by the Yubikey.
NEWS for 1.8.1 release
Merge branch 'systemd' of https://github.com/wzzrd/yubikey-personalization
more NEWS for 1.8.1
add new binary ykinfo

can be used to get serial, version or touch level from the command line
ykchalresp doesn't need to depend on libykpers
man page for ykinfo
use ykds_free() to free YK_STATUS instead of straight free
add -p switch for programming sequence
mention ykinfo in NEWS, set release date for 1.8.1
bump versions after release
bump version in configure.ac
don't use pre-constructed default structs and ykcore-lcl.h

use the set functions we provide to set up our defaults instead.
add the udev rules files to EXTRA_DIST so they're packed in distribution
release 1.8.2

very minor release, the udev files weren't included in the distribution
bump versions after release
handle deleting configuration better

if both slots are configured and one is deleted programming sequence will be
counted up as usual. when the last slot is deleted programming sequence will
be set to 0. try to handle this.
add -z switch for deleting a configuration