update translations

Merge pull request #15 from tohosaku/redmine5

Support Redmine5

move env auth helper into the path because having it as a separate fi…

…le is unnecessary and can lead to errors in some rails versions

fix mass assignment error in some rails/redmine versions. set authent…

…ication mode to the auth source where an ldap synced user was found

add listing of available variables on info page

log out users if standard login is disabled and variable is empty

Merge pull request #6 from alxwr/rails-5-support

Rails 5 support

readme: add working apache config example

increase version

remove dev setting. update readme