* Removed the setting for putting all the hildon buttons as

* Removed the setting for putting all the hildon buttons as
  horizontal arrangement, as we have both types.
* Reworked the alignments of captioneds and pickers to fit specs
  easier.
* Renamed modest_maemo_utils_create_picker_layout to
  modest_maemo_utils_set_hbutton_layout, and added
  the vbutton counterpart. These are used for properly setting
  the layout we need in HildonButton with horizontal or vertical
  arrangement.
* Lots of missing sizegroup unrefs.
* Now signature edition button is a dialog action.
* Better default size for signature dialog.
* Set the default signature to the one in specs.
* Replaced signature editor scrolled window with pannable.
* Now check buttons are aligned to the left.

pmo-trunk-r6196