tigefa4u projects Trac

Timeline API: promote `TimelineEvent.direct_href` property into the public API

Follow-up to r5444, effectively use the `first_label` variable introduced for code clarification purpose.

TracBrowser: in-place expansion was not playing well with the age color scale feature

Now we keep around the time range information corresponding to the toplevel directory, which is sent back in the XHR for getting the subdir entries.

Configuration in About page: more distinctive visual style for modified entries.

SpamFilter: ensures that the filters test/train methods are always given a value for the ''author''. Fixes #5383.

* Support for non-FQDN SMTP domains (related to #4372)
* New `admit_domains` option has been added to the notification settings:[[br]]
a comma-separated list of valid domains for email addresses
* Increase the notification message from 'debug' level to 'info' level, to distinguish outgoing data from debug traces

Fixed a bug in the sample authz policy.

Merged [wiki:TracDev/SecurityBranch]. This introduces fine-grained permissions
to Trac. Currently only the Wiki and attachment modules have been converted.

[wiki:TracDev/SecurityBranch]: Minor cleanup.

[wiki:TracDev/SecurityBranch]: Merged log:trunk@...:5510