Merged r12245 (#15235).

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12259 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12234 (#15190).

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12260 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12274 from trunk to 2.3-stable (#13348)

fix repository tree can't handle two loading at once.

Contributed by Vadim Pushtaev.

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12275 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12277 (#15344).

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12279 e93f8b46-1217-0410-a6f0-8f06a7374b81
Updates for 2.3.4 release.

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12291 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12273 from trunk to 2.3-stable.

Fixed uninitialized constant Redmine::Scm::Adapters::CommandFailed error when reloading in development mode.

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12390 e93f8b46-1217-0410-a6f0-8f06a7374b81
Merged r12387 from trunk to 2.3-stable.

fix disable to run test environment.

git-svn-id: http://svn.redmine.org/redmine/branches/2.3-stable@12391 e93f8b46-1217-0410-a6f0-8f06a7374b81