[Patch] URLs not parsable in wiki plain text emails

[robrien]

The URL supplied by the wiki_email_plaintext.txt template aren't parsable by MUA some MUAs.

Simple patch follows:

--- a/announcer/templates/wiki_email_plaintext.txt
+++ b/announcer/templates/wiki_email_plaintext.txt
@@ -9,6 +9,6 @@ ${diff}
 {% when action == "deleted" %} * The '${page.name}' has been deleted. {% end %}\
 {% end %}\
 --
-Page URL: <URL:${page_link}>
-${project_name} <URL:${project_link}>
+Page URL: <${page_link}>
+${project_name} URL: <${project_link}>
 ${project_desc}

[Robert Corsaro]

(In [8866]) Fixes links in emails

Fixes #7585 Thanks robrien!