Fix ldap provider name in template

Before this fix it's impossible to set the provider name in the
sign-model since `ldap` is a boolean there and this way not able
to have an attribute like `ldap.providerName`.

Signed-off-by: Sheogorath <sheogorath@shivering-isles.com>

Author: SISheogorath

lib/response.js

@@ -69,6 +69,7 @@ function showIndex (req, res, next) {
     dropbox: config.isDropboxEnable,
     google: config.isGoogleEnable,
     ldap: config.isLDAPEnable,
+    ldapProviderName: config.ldap.providerName,
     saml: config.isSAMLEnable,
     email: config.isEmailEnable,
     allowemailregister: config.allowemailregister,
@@ -103,6 +104,7 @@ function responseHackMD (res, note) {
     dropbox: config.isDropboxEnable,
     google: config.isGoogleEnable,
     ldap: config.isLDAPEnable,
+    ldapProviderName: config.ldap.providerName,
     saml: config.isSAMLEnable,
     email: config.isEmailEnable,
     allowemailregister: config.allowemailregister,

public/views/shared/signin-modal.ejs

@@ -52,7 +52,7 @@
                 <hr>
                 <% }%>
                 <% if(ldap) { %>
-                <h4>Via <% if (ldap.providerName) { %> <%- ldap.providerName %> (LDAP) <% } else { %> LDAP <% } %></h4>
+                <h4>Via <% if (ldapProviderName) { %> <%= ldapProviderName %> (LDAP) <% } else { %> LDAP <% } %></h4>
                 <form data-toggle="validator" role="form" class="form-horizontal" method="post" enctype="application/x-www-form-urlencoded">
                     <div class="form-group">
                         <div class="col-sm-12">