Update changelog and version

Changelog.txt

@@ -1,3 +1,6 @@
+Version 2.1.217
+    Fixed mouse-hover tooltips (thanks Greymagic27)
+
 Version 2.1.216
     Reverted Unarmed changes from 2.1.215 (fixes block breaker/beserk active at all time for all players)
     Added Sculk_* blocks to Mining XP

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>com.gmail.nossr50.mcMMO</groupId>
     <artifactId>mcMMO</artifactId>
-    <version>2.1.216</version>
+    <version>2.1.217-SNAPSHOT</version>
     <name>mcMMO</name>
     <url>https://github.com/mcMMO-Dev/mcMMO</url>
     <scm>