Updated INSTALL. wesnoth_editor scons target no longer exists.

INSTALL

@@ -78,7 +78,7 @@ then
 SCons can be found at http://www.scons.org/ .
 
 Simply type 'scons' in the top-level directory to build the game with the
-editor and the server. It is possible to select individual targets by naming
+server. It is possible to select individual targets by naming
 them as scons arguments, including wesnothd (the Wesnoth multiplayer server)
 and campaignd (the campaign server).
 
@@ -86,13 +86,12 @@ scons takes a prefix= argument that says where to install the game
 and its data.  The prefix defaults to /usr/local; for production builds
 you may want to set prefix=/usr.
 
-The target 'all' is equivalent to 'wesnoth wesnoth_editor cutter
-exploder wesnothd campaignd'.
+The target 'all' is equivalent to 'wesnoth cutter exploder wesnothd campaignd'.
 
-So, for example, this builds game, editor, and campaign server,
+So, for example, this builds game and campaign server,
 enabling debugging on all:
 
-    scons build=debug wesnoth wesnoth_editor campaignd 
+    scons build=debug wesnoth campaignd 
 
 To build wesnothd:
 
@@ -110,11 +109,11 @@ If you want to install several versions of wesnoth you should use the
 prefsdir= parameter to get distinct preferences directories.  The
 default is '.wesnoth'.
 
-Installation productions 'install', 'install-wesnoth_editor',
+Installation productions 'install',
 'install-wesnothd' and 'install-campaignd' are available.
 
 A plain 'install' installs all binary executables that exist -- so
-'scons install' after a plain 'scons' installs game and editor, but
+'scons install' after a plain 'scons' installs game and server, but
 after 'scons all' it will install all binaries.
 
 Notes on scons for autotools users