  * Removed obsolete strlen() call when creating a new series.

  * Fixed bug in ctree when looping over items. (issue #84)
  
  * Removed signal raising from all collection classes.
  
  * Removed ct_get_sure() function and improved the ct_get(), ct_getn() and 
    ct_getaddr() functions.
  
  * Improved imap_get() function.