Update extension.meta.xml

Fix typos
Merge pull request #72 from nickdunn/master

Update extension.meta.xml
check for $recipes existence prior to checking data type
Fix getHttpResponseCode str/int equality mismatch
Fix getHttpResponseCode equality mismatch sans curl

Use a loose comparison for Image::getHttpResponseCode as it may return either an integer or a string, depending on the presence of libcurl.
Merge branch 'scjalliance-master' into integration
Update README with the correct path. Fixes #80
Merge branch 'dtan-fix-recipes-check' into integration
Release 1.21