PFA updated patch for table and all it's child nodes (Version 9). This patch does not depend on any of existing table node patch.
Major change in this patch: Unlike pgAdmin3 now in table create mode any constraint(s) created (but not saved) will listen to table column changes and adapt themselves accordingly.
For e.g.
In table create mode user adds column definition with name "col1" then adds constraint which includes column "col1". Now user changes column name to "col2" then constraint will listen to this change and adapt the column name from "col1" to "col2" in constraint definition. Also if column "col2" is removed then constraint will also remove the column "col2" from it's definition.