(refs #163)Remove escaping for '.'

src/main/scala/util/Validations.scala

@@ -9,7 +9,7 @@ trait Validations {
    */
   def identifier: Constraint = new Constraint(){
     override def validate(name: String, value: String): Option[String] =
-      if(!value.matches("^[a-zA-Z0-9\\-_\\.]+$")){
+      if(!value.matches("^[a-zA-Z0-9\\-_.]+$")){
         Some(s"${name} contains invalid character.")
       } else if(value.startsWith("_") || value.startsWith("-")){
         Some(s"${name} starts with invalid character.")

src/test/scala/util/ValidationsSpec.scala

@@ -2,8 +2,7 @@ package util
 
 import org.specs2.mutable._
 
-class
-ValidationsSpec extends Specification with Validations {
+class ValidationsSpec extends Specification with Validations {
 
   "identifier" should {
     "validate id string " in {