* Fixed a potential conflict with other plugins that also utilize the Google API PHP library. The API is now only included if the Google_Client class does not already exist.
* Added additional checking during plugin activation to fail fast if the server does not meet the minimum plugin requirements.

git-svn-id: https://plugins.svn.wordpress.org/google-pagespeed-insights/trunk@785637 b8457f37-d9ea-0310-8a92-e5e31aec5664
Fixing readme.txt

git-svn-id: https://plugins.svn.wordpress.org/google-pagespeed-insights/trunk@785638 b8457f37-d9ea-0310-8a92-e5e31aec5664
I am bad at readme's. Fixing a typo.

git-svn-id: https://plugins.svn.wordpress.org/google-pagespeed-insights/trunk@785640 b8457f37-d9ea-0310-8a92-e5e31aec5664