v0.35 building buildings

If you tried to build defensive structures (minefields, barbed wire, pillboxes, etc.), you probably noticed a certain inconvenience there: there was no way to see how the structure would fit the terrain. Sometimes it made the newly built structures not as effective as they were expected to be.  With this new update it is possible to select the exact position for the building directly on a tactical map. One negative thing about this is that I had to do a lot of changes to the map data structure, so the new saves are not compatible with those of the previous versions. 

There are also some smaller fixes like bugs or dialog text improvements. As usual, thanks a lot to everyone who sent me their bug reports! 

One of the reported issues was not fixed in this update though: the logs did not contain enough information to find what exactly happened. I have added more logging in the suspicious places; if your game suddenly crashes, please send the crash report to me.