limit billing profile name and handle to max. length of database fields

fixes #967
for 2.5 the limits should be raised and proper error handling should be
implemented in osssbss - curently an internal server error is generated

root/tt/bilprof_edit.tt

@@ -17,7 +17,7 @@
                 [% bilprof.handle %]</div><div class="span-6 last">&nbsp;</div>
                 [% ELSE %]
                   <input type="text" name="handle" title="alphanumeric characters and underscore only"
-                         value="[% bilprof.handle %]" />
+                         maxlength="63" value="[% bilprof.handle %]" />
                   </div><div class="span-6 last">unique identifier string</div>
                 [% END %]
               </li>
@@ -26,7 +26,7 @@
                 <div class="span-3">Name:</div>
                 <div class="span-6">
                   <input type="text" name="name" title="free-form string"
-                         value="[% bilprof.data.name %]" />
+                         maxlength="31" value="[% bilprof.data.name %]" />
                 </div>
                 <div class="span-6 last">
                   human readable profile name