[svn] * TODO,content.c,lock.c,server.c,server.h: Remove bug notice re: need to do a Cont_write on Lock_closeDatabases in case of unwritten content changes when releasing the lock. Update content to keep dirty flag and avoid unnecessary writes, and lock to signal server to re-read its group content info after the lock is released. Do NOT write content info on Lock_close if dirty, as the placeholder article in unsubscribed groups is currently done by adding it to the content when joining the group and deliberately not saving it unless another content modification takes place and thus causes the content to be saved.

--- a/TODO	Sat Jan 27 09:57:13 2001 +0000
+++ b/TODO	Sun Feb 25 23:29:50 2001 +0000
@@ -7,9 +7,6 @@
 
  * Has Client_connect resource leaks if it fails?
 
- * Bug: Lock_closeDatabases must do a Cont_write() if dirty and Lock_openDatabases()
-   should check if it is necessary to reread the group content using a timestamp.
-
  * Make debug logging an option in the config file instead of using
    a compile time option. This makes it more comfortable for users helping on
    bug searches to switch on debug logging temporarily.