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
Gemfile: use double quote for request_store (#16685)

git-svn-id: http://svn.redmine.org/redmine/trunk@13112 e93f8b46-1217-0410-a6f0-8f06a7374b81
add patch for regression of Hash#reject in Ruby 2.1.1 (#16194)

git-svn-id: http://svn.redmine.org/redmine/trunk@13115 e93f8b46-1217-0410-a6f0-8f06a7374b81
use rvm 2.0 and 2.1 instead of 2.0.0 and 2.1.0 at .travis.yml

See:
https://github.com/travis-ci/travis-ci/issues/2220

git-svn-id: http://svn.redmine.org/redmine/trunk@13116 e93f8b46-1217-0410-a6f0-8f06a7374b81
Gemfile: upgrade mocha version (#16685)

git-svn-id: http://svn.redmine.org/redmine/trunk@13117 e93f8b46-1217-0410-a6f0-8f06a7374b81
Crash in markdown formatter causes ruby process to end (#16781).

Patch by Jens Krämer.

git-svn-id: http://svn.redmine.org/redmine/trunk@13122 e93f8b46-1217-0410-a6f0-8f06a7374b81
Use async email deliveries in rake tasks (#16784).

git-svn-id: http://svn.redmine.org/redmine/trunk@13123 e93f8b46-1217-0410-a6f0-8f06a7374b81
Field set as read-only still available in the issues list context menu (#16755).

git-svn-id: http://svn.redmine.org/redmine/trunk@13124 e93f8b46-1217-0410-a6f0-8f06a7374b81
Blank content type for attachments attached via Ajax file upload (Patch by Jens Krämer).

git-svn-id: http://svn.redmine.org/redmine/trunk@13125 e93f8b46-1217-0410-a6f0-8f06a7374b81
Mailer.token_for generates invalid message_id when using from address with full name (#16619).

git-svn-id: http://svn.redmine.org/redmine/trunk@13126 e93f8b46-1217-0410-a6f0-8f06a7374b81
Repository identifiers can be reserved words (#16564).

Patch by Felix Schäfer.

git-svn-id: http://svn.redmine.org/redmine/trunk@13127 e93f8b46-1217-0410-a6f0-8f06a7374b81
fix typo of app/models/repository/cvs.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@13128 e93f8b46-1217-0410-a6f0-8f06a7374b81
fix typo of app/models/repository/mercurial.rb

git-svn-id: http://svn.redmine.org/redmine/trunk@13129 e93f8b46-1217-0410-a6f0-8f06a7374b81