* Moved SUMMON_BOAT special case to mechanics
* Partially moved Town portal logic to mechanics class
* Added generic query reply to CCallback
* Redesigned Queries so that base API do not depends on CGameHandler
* Got rid of CGameHandler::castSpellRequest
* Removed CGameHandler::castSpell
* Added new Query type for town portal dialog (not used yet)
* fixed displaying free upgrades
* do not try to print 3rd or more resource in slot cost (in theory possible with mods)
** we need dynamic gui for that
* CDefEssential--
We also now check not number of towns, but only towns that has tavern built. Also according to original mechanics all taverns always display information based on your number of taverns and not number of taverns of object owner.
- implemented switch in settings screen
- implemented "0 speed", animation-free. *may* also work for player-owned heroes
- removed no longer used creature window switch
- renamed CAdventureMapButton to more expectable CButton
- merged CButtonBase into CButton
- created more generic class for clickable elements
- created more generic class for selectable elements
- renamed CHighlightableButton to CToggleButton
- renamed CHighlightableButtonsGrous to CToggleGroup
- minimized differences between API of all these classes
- removed all but one contructors in buttons, with same parameters across all classes
