Update commonobject.class.php

Hide the margintable if click at the top of it (usefull when customer are just in front of you), reappear when you click again
Update commonobject.class.php
Update objectline_view.tpl.php
Update commonobject.class.php
Using hidden constant to use the feature

MARGININFO_HIDE_SHOW = 0 feature not used
MARGININFO_HIDE_SHOW = 1 feature used, displayed on open
MARGININFO_HIDE_SHOW = 2 feature used, not displayed on open
Merge branch 'patch-11' of github.com:defrance69/dolibarr into
defrance69-patch-11

Conflicts:
	htdocs/core/class/commonobject.class.php
Merge branch 'defrance69-patch-11' into develop