Small program producing binary with large filesize

[Dan Barbarito via Digitalmars-d-learn]

Hi all,

I am starting to write a command line tool. So far it is a small 
(feature-wise) program but the file size is scaring me. It's 
already 13 megabytes, but I would expect it to be much smaller. 
Is it because I'm using 3 libraries so far? The libraries are: 
mir, vibe.d, and d2sqlite3. Would using these libraries be 
causing this file size?

The code can be found here 
(http://fossil.barbarito.me/finbot/zip/finbot.zip), if anyone 
wants to take a look. I am simply running "dub build" to build 
the binary. I tried running "dub build --build=release" but that 
didn't effect the file size too much.

Thanks!