[IMP]purchase_picking. Added date_expected in tree view
[IMP]purchase_picking. Added date_expected in tree view

jgmanzanas/CMNT_004_15,Comunitea/CMNT_004_15,Pexego/PXGO_00053_2013_VT,jgmanzanas/CMNT_004_15,Pexego/PXGO_00053_2013_VT,jgmanzanas/CMNT_004_15,jgmanzanas/CMNT_004_15,Pexego/PXGO_00053_2013_VT,Comunitea/CMNT_004_15,jgmanzanas/CMNT_004_15,Comunitea/CMNT_004_15,Comunitea/CMNT_004_15,jgmanzanas/CMNT_004_15