Add the fallback version into the pom.xml

pom.xml

@@ -3,7 +3,12 @@
 
     <groupId>org.locationtech.proj4j</groupId>
     <artifactId>proj4j</artifactId>
-    <version>${revision}</version>
+    <!-- Version is set here explicitly, since Jenkins doesn't work with the jgitver plugin.
+         See https://github.com/locationtech/proj4j/issues/57 for more details.
+
+         Alternatively, it could be set to <version>${revision}</version> and overrided at start `mvn -Drevision=1.1.4-SNAPSHOT install` 
+         jgitver plugin always overrides the version set here. -->
+    <version>1.1.4-SNAPSHOT</version>
     <packaging>bundle</packaging>
     <name>Proj4J</name>
     <url>https://github.com/locationtech/proj4j</url>