Merged r12367 and r12368 from trunk to 2.4-stable

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branch : 2.4-stable
extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/branches/2.4-stable%4012369
Merged r12387 from trunk to 2.4-stable.

fix disable to run test environment.

--HG--
branch : 2.4-stable
extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/branches/2.4-stable%4012388
Merged r12273 from trunk to 2.4-stable.

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

--HG--
branch : 2.4-stable
extra : convert_revision : svn%3Ae93f8b46-1217-0410-a6f0-8f06a7374b81/branches/2.4-stable%4012389