[IMP] Calendar: No need to do default_get by hand
[IMP] Calendar: No need to do default_get by hand

The form will already do a default_get on do_show() when index is null

MarkusTeufelberger/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,splbio/openerp-web,splbio/openerp-web,gisce/openerp-web