Make :ViewSession compatible with console Vim (issue #74)

See issue #74 on GitHub:
  #74

README.md

@@ -246,7 +246,7 @@ Recently this plug-in switched from reimplementing [:mksession][mksession] to ac
 <!-- Start of generated documentation -->
 
 The documentation of the 34 functions below was extracted from
-1 Vim scripts on July 20, 2013 at 12:48.
+1 Vim scripts on October 15, 2013 at 19:26.
 
 ### Public API for the vim-session plug-in
 

autoload/xolox/session.vim

@@ -1,10 +1,10 @@
 " Public API for the vim-session plug-in.
 "
 " Author: Peter Odding
-" Last Change: July 20, 2013
+" Last Change: October 15, 2013
 " URL: http://peterodding.com/code/vim/session/
 
-let g:xolox#session#version = '2.4.8'
+let g:xolox#session#version = '2.4.9'
 
 " Public API for session persistence. {{{1
 
@@ -584,7 +584,11 @@ function! xolox#session#view_cmd(name) abort " {{{2
       let msg = "session.vim %s: The %s session at %s doesn't exist!"
       call xolox#misc#msg#warn(msg, g:xolox#session#version, string(name), fnamemodify(path, ':~'))
     else
-      execute 'tab drop' fnameescape(path)
+      if has('gui_running')
+        execute 'tab drop' fnameescape(path)
+      else
+        execute 'tabedit' fnameescape(path)
+      endif
       call xolox#misc#msg#info("session.vim %s: Viewing session script %s.", g:xolox#session#version, fnamemodify(path, ':~'))
     endif
   endif

doc/session.txt

@@ -490,7 +490,7 @@ might take a while...)
 Function reference ~
 
 The documentation of the 34 functions below was extracted from 1 Vim scripts on
-July 20, 2013 at 12:48.
+October 15, 2013 at 19:26.
 
 -------------------------------------------------------------------------------
                                            *public-api-for-vim-session-plug-in*
@@ -705,7 +705,7 @@ session. If you like the script please vote for it on Vim Online [19].
                                                               *session-license*
 License ~
 
-This software is licensed under the MIT license [20]. © 2013 Peter Odding
+This software is licensed under the MIT license [20]. Š 2013 Peter Odding
 <peter@peterodding.com>.
 
 ===============================================================================