tigefa4u projects Trac

Add `TicketModule.resource_exists`, plus doctests.

Attachment module checks that the parent resource exists before allowing attachments.

Add `IResourceManager.resource_exists(resource)` and an implementation for the `WikiModule`, with doctests.

Fix `trac.test.EnvironmentStub` log handling following [9713]. Makes the test infrastructure work again.

l10n/pt_BR: some small messages (100%)

l10n/nl: Small translation improvement

Updated translation for 0.12RC1 by Bas van Oostveen and Laurens Holst

changeset: alternate link for unified diffs was not MultiRepos aware, in the revision range or generalized diff case.

TracLinks: respect abbreviated form of InterTrac and InterWiki links (revert r6417).

When writing such a link between square brackets, remove the inter- prefix. If this is not wanted, the square brackets can be omitted.

logger: more robust clean-up of log handler.

It was wrong to hook the Handler on the Logger, as the latter is unique for a given environment. Therefore the wrong handler could be closed.

Should fix #6580.

env: simplify `shutdown` method, no need for `except_logging`, as it's simpler to just shutdown the \!DatabaseManager.