Better use of pkg-config.
Made a better interraction between the GC and callbacks.
Better GC in Elm_list.
Better GC in Elm_diskselector.
Better GC in Elm_entry.
Better GC with Elm_flipselector.
Better GC in Elm_genlist/gengrid (not perfect).
Better GC with Elm_gesture_layer/hoversel/index/layout.
Better GC in Elm_web.
Better GC.
Added EVAS_CALLBACK_FREE.
Better GC in Elm_progressbar.
Replaced hashtables by maps in Elm_progressbar/slider.