AssetManager 0.3.7.7

Login page translated via i18n keys.
Language switching remains available before login and is stored only in the session until authentication.
Translation management can add custom translation keys directly.
Custom translations can be selected with checkboxes and deleted in bulk.
Built-in translation keys are protected from deletion because they are required by the application.
Translation filter layout corrected.
Table headings in all included table templates use translation keys, including dynamic asset fields.
Mesh debug requires re-entry of the current user's password.
Local users are verified against the local password hash; LDAP users are verified against LDAP.
Mesh debug password is sent only in the POST request and is not stored.