moving along with building buildings

I've added the ability to delete walls and expand rooms pretty easily. I can also add new rooms. You can select a wall and move it. 

I can now save a file and bring it back in. Wouldn't be any good if you couldn't save your work. Later I'll add the building to a postgres database, that is, if the user wants a backup of their home. If not, they'll be able to save it in different ways. Flash drive, etc. 

Eventually, I'll connect directly to the home. So they'll be able to see their stuff from anywhere.

Still a lot of bugs.

Pierre