Added alpha marker so that WoWUnit isn't include in non-alpha builds.

diff --git a/embeds.xml b/embeds.xml
index 99fbe63..d13d80b 100644
--- a/embeds.xml
+++ b/embeds.xml
@@ -25,6 +25,8 @@
 	<Script file="Libs\LibPeriodicTable-3.1\LibPeriodicTable-3.1\LibPeriodicTable-3.1.lua" />
 	<Include file="Libs\LibPeriodicTable-3.1\modules.xml" />
 	-->
+	<!-- @alpha@ -->
 	<Script file="Libs\WoWUnit-1.0.9\WoWUnit.lua" />
+	<!-- @end-alpha@ -->

 </Ui>
\ No newline at end of file