fix typo at lib/redcloth3.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@13091 e93f8b46-1217-0410-a6f0-8f06a7374b81
fix wrong default scm_subversion_command of doc/CONFIGURATION.md
Revert "Fixed test by replacing assert_tag with assert_select"

This reverts commit 9baa310486d782bf248708621702cb6b26878951.

See:
https://www.chiliproject.org/issues/433
introduce request_store to ensure that the current user doesn't leak across request boundaries (#16685)

Contributed by Holger Just.

git-svn-id: http://svn.redmine.org/redmine/trunk@13110 e93f8b46-1217-0410-a6f0-8f06a7374b81