Tcod

Changed
- CMake can now create packages.

Fixed
- `TCOD_console_init_root` and context initializing functions were not
returning error codes on failure.

Changed
- Print functions will no longer treat special glyphs as double wide.
- Library CMake files now support Vcpkg.

Fixed
- Fixed divide by zero when handing mouse input without a global context.

Fixed
- Fixed characters being dropped when color codes were used.

Fixed
- `FOV_DIAMOND` and `FOV_RESTRICTIVE` algorithms are now reentrant.
[48](https://github.com/libtcod/libtcod/pull/48)
- Heightmap functions will crash less often when given out-of-bounds parameters.
[13](https://github.com/libtcod/libtcod/issues/13)
[50](https://github.com/libtcod/libtcod/pull/50)
- The `TCOD_VSYNC` environment variable was being ignored.
- Malformed UTF-8 strings will no longer hang printing functions.

Fixed
- Changing the active tileset now redraws tiles correctly on the next frame.

Fixed
- Changing the active tileset will now properly show it on the next render.