ai_19_8_9 released

turned off cursor, (leaving windows cursor).
adjusted mouse clicks selection.
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further work on town population selection:
turned off workplace/click view, this was causing crashes in the movement of workers from industry to industry. will go back to this later.
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icons can now be selected and moved to new workplace. However certain restrictions apply, e.g. factories can only be maned by commuting workers from its town, and not from another town;
workers can only go to locations of the same alliance.