file forms remove browser autocomplete

This could be problematic in the past since it could remember older
values, leading to errors.

Furthermore, since we are now using At.js for these inputs, browser
autocompletion is a major hindrance and needs to disappear.
See 2701

server/web2py/applications/vidjil/views/file/add.html

@@ -59,7 +59,7 @@
             {{ for key in id_strings: }}
             <tr>
                 <td><label for="{{=key}}_id" id="{{=key}}_id__label">{{=key if key != 'generic' else 'set'}}: </label></td>
-                <td><input onfocus="new VidjilAutoComplete().setupSamples(this);" data-needs-atwho="true" data-keys=["{{=key}}"] id="{{=key}}_list" name="{{=key}}_id" type="text" size="80" value="{{=id_strings[key]}}"></td>
+                <td><input onfocus="new VidjilAutoComplete().setupSamples(this);" data-needs-atwho="true" data-keys=["{{=key}}"] id="{{=key}}_list" name="{{=key}}_id" type="text" size="80" value="{{=id_strings[key]}}", autocomplete="off"></td>
             </tr>
             {{ pass }}
 			<tr class='db_table_split' ><td colspan="2"> sample information </td></tr>

server/web2py/applications/vidjil/views/file/edit.html

@@ -65,7 +65,7 @@ info = db.sequence_file[request.vars["id"]]
             {{ for key in id_strings: }}
             <tr>
                 <td><label for="{{=key}}_id" id="{{=key}}_id__label">{{=key if key != 'generic' else 'set'}}: </label></td>
-                <td><input onfocus="new VidjilAutoComplete().setupSamples(this);" data-needs-atwho="true" data-keys=["{{=key}}"] id="{{=key}}_list" name="{{=key}}_id" type="text" size="80" value="{{=id_strings[key]}}"></td>
+                <td><input onfocus="new VidjilAutoComplete().setupSamples(this);" data-needs-atwho="true" data-keys=["{{=key}}"] id="{{=key}}_list" name="{{=key}}_id" type="text" size="80" value="{{=id_strings[key]}}" autocomplete="off"></td>
             </tr>
             {{ pass }}