Fix generation of blank local link when no title is specified in wiki link.
Merged r7558 from trunk (#3276).
Use local links in wiki pages when possible (#3276).
Rails3: lib: helper: use html_safe for Gantt
Contributed by Sylvain Utard.
Rails3: view: use html_safe for Gantt
Rails3: model: replace deprecated 'validate_on_create' method at Message model
add unit message test of cannot reply to a locked topic
code layout clean up of test/unit/message_test.rb
Rails3: helper: use html_safe for Subversion setting
Rails3: helper: use html_safe for filesysytem scm setting
