Remove snapshot annotation (#36)

Author: NikolaosPapailiou

build.gradle

@@ -27,7 +27,7 @@ apply plugin: 'java'
 apply plugin: 'com.diffplug.spotless'
 
 group 'io.tiledb'
-version = '0.5.0-SNAPSHOT'
+version = '0.5.0'
 
 repositories {
     mavenCentral()