(refs #115)Fix account registration page and add public key deletion

src/main/scala/service/SshKeyService.scala

@@ -12,4 +12,8 @@ trait SshKeyService {
   def getPublicKeys(userName: String): List[SshKey] =
     Query(SshKeys).filter(_.userName is userName.bind).sortBy(_.sshKeyId).list
 
+  def deletePublicKey(userName: String, sshKeyId: Int): Unit =
+    SshKeys filter (_.byPrimaryKey(userName, sshKeyId)) delete
+
+
 }