remove old internal documentation, update READMEs

Signed-off-by: Nico Schottelius <nico@kr.ethz.ch>

doc/dev/todo/post-1.0

@@ -3,9 +3,6 @@ Core:
       - probably name them only_once and use that as the internal id!
    - extend cdist_tree_wrapper to look for optional/mandority parameters for types
       - gives "good" database, which contains only valid objects
-   - use ssh with master socket?
-      - saves connection delay for new connections: -M
-      - hint: http://protempore.net/~calvins/howto/ssh-connection-sharing/
    - remove remote_base_dir at beginning - otherwise fragments from
      previous runs may still be existing!
 
@@ -29,3 +26,9 @@ Types to be written:
       - delete_line_from_file
       - regexp replace (can probably cover all?)
 
+Documentation:
+   - Multi master setups
+   - use ssh with master socket?
+      - saves connection delay for new connections: -M
+      - hint: http://protempore.net/~calvins/howto/ssh-connection-sharing/
+   - Describe pull architecture and requirements