- Added PHP version check and error message if an incompatible version of PHP is detected.

git-svn-id: https://plugins.svn.wordpress.org/wp-statistics/trunk@1003497 b8457f37-d9ea-0310-8a92-e5e31aec5664
- Updated user agent parsing code, no longer requires modification from the official distribution.

git-svn-id: https://plugins.svn.wordpress.org/wp-statistics/trunk@1003498 b8457f37-d9ea-0310-8a92-e5e31aec5664