* removed warning

git-svn-id: https://plugins.svn.wordpress.org/bitcoin-charts-widget/trunk@1025574 b8457f37-d9ea-0310-8a92-e5e31aec5664
+ version 0.3.7
- removed warning message

git-svn-id: https://plugins.svn.wordpress.org/bitcoin-charts-widget/trunk@1025575 b8457f37-d9ea-0310-8a92-e5e31aec5664