Log Message:
Changes 2.10.3:
* Adjustment: Preventing the value from being ignored.
* Build:
  - ListViewText:
  Fix an odd build problem with gcc 3.3.6.
* Documentation:
  - Explain the optional (at build-time) API for
  reduced resources environments.
  - Correct the links to the Memory Management and libglademm chapters.
  - Drawable::get_image(), Container::remove(), Widget::add_mnemonic_label:
  avoid mentioning a functions that do not exist in gtkmm.