ncurses 5.9 - patch 20140614

ncurses 5.9 - patch 20140614

+ fix dereference before null check found by Coverity in tic.c
  (cf: 20140524).
+ fix sign-extension bug in read_entry.c which prevented "toe" from
  reading empty "screen+italics" entry.
+ modify sgr for screen.xterm-new to support dim capability -TD
+ add dim capability to nsterm+7 -TD
+ cancel dim capability for iterm -TD
+ add dim, invis capabilities to vte-2012 -TD
+ add sitm/ritm to konsole-base and mlterm3 -TD