Setup project versions

Build parameters (with corresponding project properties):
- build.number (buildNumber) - build number from build server, goes into manifest, by default snapshot
- deployVersion (kotlinVersion, project.version) - version of artifacts, by default build.number
- bootstrap.kotlin.version (bootstrapKotlinVersion) - version of bootstrap compiler

libraries/configureGradleTools.gradle

@@ -20,7 +20,7 @@ configure([project(':kotlin-gradle-plugin'), project(':kotlin-allopen'), project
     }
 
     publishPlugins.doFirst {
-        assert !kotlin_version.contains('SNAPSHOT')
+        assert !kotlinVersion.contains('SNAPSHOT')
     }
 
     pluginBundle {