fixed encoding (#3597)

* Fixed encoding

* Fixed encoding

core/src/main/resources/hudson/security/SecurityRealm/loginLink_es.properties

@@ -20,4 +20,4 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-login=Iniciar sesión
+login=Iniciar sesi\u00F3n

core/src/main/resources/jenkins/model/JenkinsLocationConfiguration/config_es.properties

@@ -20,5 +20,5 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
-Jenkins\ URL=Dirección web de Jenkins
-Sender\ E-mail\ Address=Dirección de remitente
+Jenkins\ URL=Direcci\u00F3n web de Jenkins
+Sender\ E-mail\ Address=Direcci\u00F3n de remitente