remove posix username validation ... I think it will work ok without it

tes/sshwrapper/__init__.py

@@ -193,7 +193,7 @@ class Ssh:
         if sess.socket is None:
             raise SshAgentException("No ssh-agent yet")
         env['SSH_AUTH_SOCK'] = sess.socket
-        Ssh.validate_username(user)
+        #Ssh.validate_username(user)
         Ssh.validate_hostname(host)
         ctrlsocket = Ssh.get_ctrl_master_socket(sess, host, user, sshport)
         sftpcmd = Ssh.SFTPCMDWITHOPTS.copy()
@@ -239,7 +239,7 @@ class Ssh:
         if sess.socket is None:
             raise SshAgentException("No ssh-agent yet")
         env['SSH_AUTH_SOCK'] = sess.socket
-        Ssh.validate_username(user)
+        #Ssh.validate_username(user)
         Ssh.validate_hostname(host)
         ctrlsocket = Ssh.get_ctrl_master_socket(sess, host, user, sshport)
         if (path is None or path == ""):
@@ -297,7 +297,7 @@ class Ssh:
             host,sshport = host.split(':')
         if bastion is not None and ":" in bastion:
             bastion,bastionsshport = bastion.split(':')
-        Ssh.validate_username(user)
+        #Ssh.validate_username(user)
         Ssh.validate_hostname(host)
         Ssh.validate_command(cmd)
         if bastion == None:
@@ -403,7 +403,7 @@ class Ssh:
             host,sshport = host.split(':')
         Ssh.validate_port(port)
         Ssh.validate_hostname(batchhost)
-        Ssh.validate_username(user)
+        #Ssh.validate_username(user)
         Ssh.validate_hostname(host)
         ctrlsocket = Ssh.get_ctrl_master_socket(sess, host, user, sshport)
         localport = Ssh.get_free_port()