Reverted the attempt at automating the version number in plugin.yml.

ProtocolLib/dependency-reduced-pom.xml

@@ -4,7 +4,7 @@
   <groupId>com.comphenix.protocol</groupId>
   <artifactId>ProtocolLib</artifactId>
   <name>ProtocolLib</name>
-  <version>1.9.0</version>
+  <version>1.9.1-SNAPSHOT</version>
   <description>Provides read/write access to the Minecraft protocol.</description>
   <url>http://dev.bukkit.org/server-mods/protocollib/</url>
   <developers>

ProtocolLib/src/main/resources/plugin.yml

@@ -1,5 +1,5 @@
 name: ProtocolLib
-version: ${project.version}
+version: 1.9.1
 description: Provides read/write access to the Minecraft protocol.
 author: Comphenix
 website: http://www.comphenix.net/ProtocolLib