Make the display of the MOTD and service status optional.
 - Closes #100
 - Closes #96
Merge branch 'master' of https://github.com/Oooska/pgina into Oooska-master
Spruce up the icons a bit.
  - Looks good at large and extra large sizes
  - Still ugly at medium and small sizes, not sure why.
More icon improvements.
  - Add more sizes, looks good at all typical sizes.
  - Update installer icon.
  - TODO: Different installer icon?
Merge branch 'master' of https://github.com/Oooska/pgina into Oooska-master
Change label text.
Update icon in Configuration UI upper-left.
Don't check revocation lists when validating x509 certificates
against the Windows stores.
  - Fixes #107
Update changelog from v3.0
Update SDK and CHANGELOG for 3.1.0.0 BETA
GINA support for optional MOTD/Service status.
Add some tool-tips.
Fix documentation
Additional options for password scrambling.
 - Passwords scrambling in one of two modes:
   1. Only when local machine auth fails
   2. All users are scrambled except for list of exceptions.
 - Fixes #136
 - Also update copyright and add license text.
Support DNs in group membership attributes.
 - Add support for groupOfUniqueNames and groupOfNames
   object classes when searching for group membership.
 - Fixes #135
Update version and SDK to 3.1.1.0.
A bit of refactoring to simplify things.
 - Remove LdapAuthenticator class, functionality
   moved to LdapServer.
Add NUnit tests and NUnit framework.
Fail when LDAP auth doesn't execute and configured to
require authentication.
Use Environment.SpecialFolder to place the DLLs.
  - Fixes #137