Fixed an issue with the process and clear buttons not being properly disabled when the queue is cleared.

diff --git a/CauldronMain.xml b/CauldronMain.xml
index 310ee6b..de4ef23 100644
--- a/CauldronMain.xml
+++ b/CauldronMain.xml
@@ -1353,6 +1353,7 @@
 							<OnClick>
 								CauldronQueue:ClearQueue(Cauldron:GetQueue());
 								Cauldron:UpdateQueue();
+								Cauldron:UpdateButtons();
 							</OnClick>
                         </Scripts>
                     </Button>