Switch use of strtok() to gd_strtok_r()

strtok() is not thread safe, so this will potentially break in
very bad ways if used in ZTS mode.

I'm not sure why gd_strtok_r() exists since it seems to do the
same thing as strtok_r(), but I'll assume it's a portability
decision and do as the Romans do.
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Switch use of strtok() to gd_strtok_r()

Conflicts:
	NEWS
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Switch use of strtok() to gd_strtok_r()
Add CVE ID for bug #67539
Add NEWS entry for bug #67730

Included in 5.4.32 with commit 706aefb
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  Add NEWS entry for bug #67730
  Add CVE ID for bug #67539
Add NEWS entry for bug #67730
Add NEWS entry for bug #67492

Included in 5.5.14 with commit d9c5a1d
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  Add NEWS entry for bug #67492
  Add NEWS entry for bug #67730
  Add NEWS entry for bug #67730
  Add CVE ID for bug #67539
Add CVE ID for bug #67539
Add NEWS entry for bug #67730
fixed variable corruption under win x64
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  fixed variable corruption under win x64
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  fixed variable corruption under win x64
NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  NEWS
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  NEWS
fix test
Merge branch 'PHP-5.5' into PHP-5.6

* PHP-5.5:
  fix test
fix test