Changed version numbers

With the latest updates from Ivan Ukhov, I went ahead and changed the
version number.

doc/bufexplorer.txt

@@ -1,7 +1,7 @@
-*bufexplorer.txt*              Buffer Explorer       Last Change: 22 Oct 2013
+*bufexplorer.txt*              Buffer Explorer       Last Change: 13 Aug 2014
 
 Buffer Explorer                                *buffer-explorer* *bufexplorer*
-                                Version 7.4.2
+                                Version 7.4.3
 
 Plugin for easily exploring (or browsing) Vim|:buffers|.
 
@@ -242,6 +242,11 @@ The default is 0, so that the size is set by Vim.
 ===============================================================================
 CHANGE LOG                                              *bufexplorer-changelog*
 
+7.4.3    August 13, 2013
+    - Ivan Ukhov fixed issue with deleting the last window.  This update also
+      fixes as well as anotherIf you have say, NERDtree open on the left side
+      and bufexplorer on the right, that bufexplorer would close NERDtree
+	  erroneously thinking that it is closing itself.
 7.4.2    October 22, 2013
     - Added global option g:bufExplorerDisableDefaultKeyMapping.  This option
       controls weather the default key mappings (\be, \bs, and \bv) are

plugin/bufexplorer.vim

@@ -36,7 +36,7 @@
 " Name Of File: bufexplorer.vim
 "  Description: Buffer Explorer Vim Plugin
 "   Maintainer: Jeff Lanzarotta (delux256-vim at yahoo dot com)
-" Last Changed: Thursday, 26 June 2014
+" Last Changed: Wednesday, 13 August 2014
 "      Version: See g:bufexplorer_version for version number.
 "        Usage: This file should reside in the plugin directory and be
 "               automatically sourced.
@@ -72,7 +72,7 @@ endif
 "2}}}
 
 " Version number
-let g:bufexplorer_version = "7.4.2"
+let g:bufexplorer_version = "7.4.3"
 
 " Check for Vim version {{{2
 if v:version < 700