bump automake version to 1.11
A more precise handling of user-token match errors

Signed-off-by: Pierre-Alain Dupont <pad@melix.net>
bug in version check, now works with early model NEO
Merge pull request #15 from wwest4/master

util.c version check fix
release 2.13
update doc
add more docs
bump version after release
print information only if debug is specified

The pam module is very informative. I do not want it to print any
information unless debug is specified. An attacker should not get any
information.
Don't install internal header files.
Add.
add the same warnings package as yubico-c
refactor to use chalresp function from ykpers

so challenge_response() now calls yk_challenge_response() to
do the yubikey internal stuff.
use pbkdf2 to process the exepected response

this bumps the version on the state file to 2
old files can still be read but new files will use the new format
fix warnings
fixup warnings
fix warnings
ignore signed releases
add -i switch for setting iterations with ykpamcfg
Stop leaks of memory and of privileges

Fix several memory leaks and mishandling of the privilege status
where a function returned failure indication, and previously
allocated memory was not freed (and the referece was lost), or
previously droped privileges where not restored.