fixed 2 bugs in withheld implementation

1. Threadlocal was not reset each request so sometime withheld is hidden even when it shouldn't

2. but with threadlocal sometimes causes elements to be removed and then metadata saved, losing the elements

Conflicts:
	web/src/main/java/org/fao/geonet/kernel/XmlSerializer.java
ISO19139 / Improve French translation (Thanks to Metawal metadata working group).
Load WMC / Fix error related to OL 2.12 update.
Load WMC / Add load.wmc service to the allowed services. Remove old intermap services.
Improve french translation.
ISO19139 / Improve support for making metadata on maps (#1250).
Merge remote-tracking branch 'origin/master'
Harvester / GeoNetwork / Add custom filter (#1260).
Properly display node name in the page title for widgets and administration pages.
Widgets / Fix create metadata link from administration on IE which does not take #create into account.
Properly initialize new logo on startup.
Fix IE7 error on map initialization in editor.
Fix layout of shortcut in help panel.
Remove extra comma - causing issue on IE.
CSW / Add OutputSchema = own to retrieve ISO records in their own schema (GeoNetwork extension).
Add support for ISO extended element references by type (using isoType attribute) (#1263).

Both syntax is now supported:
* <sdn:SDN_DataIdentification gco:isoType="MD_DataIdentification_Type">
* <sdn:SDN_DataIdentification gco:isoType="gmd:MD_DataIdentification">
Editor window unusable in IE if a <gmd:Date> is empty (#1262).
Widgets / Improve login form layout - align button, overlaping labels. Thanks Arnaud de Groof.
make database healthcheck cross database

fix fo #1258
fixed last commit...

forgot about how dbms makes column names xml nodes