Fixes '[Exception in internal.isfit.org] sessions#mail_password' for deleted
users
A NoMethodError occurred in sessions#mail_password:

  undefined method `dn' for nil:NilClass
    app/models/user.rb:111:in `changeLdapPassword'
Selenium updated to 2.35
Merge pull request #66 from isfit/update_selenium

Selenium updated to 2.35
Merge pull request #65 from isfit/password_reset_fix

Fixes '[Exception in internal.isfit.org] sessions#mail_password' for del...