TODO-RELEASE: add and remove issues

Removed a fixed issue, added five new existing ones and clarified one of
the previous ones.

TODO-RELEASE

@@ -6,12 +6,30 @@ To be addressed in 7.21.5
 
 272 - re-using connections bound to local port
 
-273 - Ben Noordhuis' imap + ssl patch
-
 274 - Ben Noordhuis' smtp + ssl patch
 
-275 - avoid sending USER?
+275 - Introduce a way to avoid sending USER for FTP connections
 
 278 - "Configure  $as_echo does not work"
 
-281 - 
+281 - Several scan-build warnings have sneaked in:
+      http://curl.haxx.se/scans/
+
+282 - 100 Continue responses should return the "final" HTTP response code: 
+      "Getting the HTTP response code following a 100 Continue"
+
+283 - bug 3208760 "Bad HTTP POST retry with READFUNCTION or READDATA set"
+      http://curl.haxx.se/bug/view.cgi?id=3208760
+      (suggested patch probably the right fix, add test case to make sure)
+
+284 - bug 3172608 "No re-authentication when HTTP connecton is closed"
+      http://curl.haxx.se/bug/view.cgi?id=3172608
+      Would be nice if someone could verify the suggested patch
+
+285 - bug 3163118 "Allow programatic use of telnet on Windows"
+      http://curl.haxx.se/bug/view.cgi?id=3163118
+      Would appreciate a Windows developer to give it a look before we apply
+      the suggested patch
+
+286 - 
+