Updated project files for MSVC and automake (I hope I didn't break it)
* Refactored pathfinding and integrated into CGameState.
* Fixed issues with wrong calculating movement cost at server side
* Hero infowindow won't be redrawed each time experience changes
* Removed memory leaks with CPaths-s
* Support for Sign objects
* Bumped savegame formt version to ensure old not compatible saves won't be readed
* Spellscrolls will disappear on visit (won't be treated as spellbooks anymore)
516b1e2b00