Log Message:
Update to 6.2.5:

Version 6.2.5 - November 16 2012

[CHANGES]
New facilities:
gtags.el: Now supports XEmacs again.
gtags.vim: New custom variable Dont_Jump_Automatically.

[BUG FIXED]
gtags: Now the following error does not occur.
  'input buffer overflow, can't enlarge buffer because scanner uses REJECT'
gtags.el: 'gtags-parse-file' didn't expand the file name (tilde character => \ 
$HOME).
  Now it works.