Use a semaphore to prevent race conditions resulting in duplicated posts.


git-svn-id: https://plugins.svn.wordpress.org/tagregator/trunk@1014032 b8457f37-d9ea-0310-8a92-e5e31aec5664
Explode the hashtags earlier to mitigate race conditions.

This is only for servers that don't support the Semaphore module. It won't help much, but won't hurt.


git-svn-id: https://plugins.svn.wordpress.org/tagregator/trunk@1014036 b8457f37-d9ea-0310-8a92-e5e31aec5664