Release v0.2.0 dokuwiki:authssl

Action Plugin
- disables login action

Auth Plugin
- recognizes activation
- authenticates and determines name and email via SSL-Server-Variables (apache)
- delegation to authplain:
  - creates user in authplain if not known there from SSL-Credentials and sets random password in case 'authtype' is switched to 'authplain'
  - updates name and email for known user in authplain on successful authentication
  - fetches groups from authplain
  - allows user management via authplain - allowing change of login is necessary for manual user creation