Update to reduce server and bandwidth load.

git-svn-id: https://plugins.svn.wordpress.org/trading-signals-widget/trunk@752622 b8457f37-d9ea-0310-8a92-e5e31aec5664
Commit release 0.1.4.7

git-svn-id: https://plugins.svn.wordpress.org/trading-signals-widget/trunk@752624 b8457f37-d9ea-0310-8a92-e5e31aec5664