Updated the files to be able to compile it to the latest versions of the
sourcecode of Nginx and Yubikey
Changes the config file and some includes. Still untested!!
Changed the api version to 2.0
Added modeline
Fixed OTP replay against cached credentials. Added feature auth_yubikey_api_url.
Delete ChangeLog
Delete README
On error from Yubico show realm instead of forbidden
Merge pull request #4 from sanderv32/compile-fix

Please merge [compile-fix] with [master].
Merge pull request #5 from sanderv32/pre-1.1.1

Merge pre 1.1.1 with master
Merge pull request #1 from sanderv32/master

Merge with new master