Log Message:
Update to 6.2.10:

Version 6.2.10 - January 16 2014

[CHANGES]
New facilities:
o gtags.el: New custom variables 'gtags-find-all-text-files'.

Optimization:
o global: Optimization of case-insensitive search like:
  $ global -xi strlen
  $ global -xi '^str'

[FIXED BUGS]
o global: Combination of the -v and -g option shows wrong matched
  number (always 0). Now it works.
o global: The --from-here option did not work with a path name
  which includes symbolic links. Now it works.
o global: The -I command fails when the logical and physical
  path name of the current working directory are not identical.
  Now it works.
o htags: Htags couldn't find tag files in obj directories.
  Now it works.
o ctags-5.8.patch: This file was not included in old packages.
  Now it is included.