Should Have Most Of The TCProxy Functionality Now

Changelog:

• "Run as Admin" switch (-A) implemented. Tilandis will save a new boolean value in links.json ("asadmin"). If this value is true, Tilandis will request that the process be run with administrator rights (including the UAC dialog). If this value is false (default) or doesn't exist (compatibility with older links.json files), the process will be run unelevated.
• Now uses MessageBox() for errors instead of outputting to std::wcout. This is due to an internal switch to wWinMain causing std::wcout and friends to not actually do anything. Usage printing is temporarily unavailable. But hey, at least you don't have to read errors in that butt ugly font the command prompt uses by default!
• Tilandis will now send a polite close request to TileCreator (currently not able to send to anything but TileCreator) shortly after launching your link. Interestingly, using Tilandis instead of TCProxy may fix TileCreator's "eded" bug. Then again, it may not. I'm certainly noticing it less. (edit 01.30: It does not fix the eded bug. My apologies for any mislead.)