Log Message:
Update Passenger to 3.0.15

Release 3.0.15
 * Updated documentation.
 * Updated website links.

Release 3.0.14
 * [Apache] Fixed a long-standing mod_rewrite-related problem.
   Some mod_rewrite rules would not work, but it depends on the exact
   mod_rewrite configuration so it would work for some people but not
   for others. Issue #563. Thanks a lot to cedricmaion for providing
   information on the nature of the bug and to peter.nash55 for
   providing a VM that allowed us to reproduce the problem.
 * [Nginx] Preferred Nginx version to 1.2.2.
   The previously preferred version was 1.2.1.
 * Cleared some confusing terminology in the documentation.
 * Fixed some Ruby 1.9 encoding problems.

Release 3.0.13
 * [Nginx] Preferred Nginx version upgraded to 1.2.1.
 * Fixed compilation problems on FreeBSD 6.4. Fixes issue #766.
 * Fixed compilation problems on GCC >= 4.6.
 * Fixed compilation problems on OpenIndiana and Solaris 11. Fixes issue #742.
 * Union Station-related bug fixes.
 * Sending the soft termination signal twice to application processes
   no longer makes them crash. Patch contributed by Ian Ehlert.