Latest version changes fonts for entire site

After updating to version 2.3, all the fonts on my site were changed. This includes pages which I am not using the short-code on.

Here is what my homepage looks like with the plug-in disabled: https://drive.google.com/file/d/0B8ua23PyPR1dSFZwd2p5eEJkMG8/view?usp=sharing

Here is what it looks like after I enable it: https://drive.google.com/file/d/0B8ua23PyPR1dMjNUczBYQkJkdjg/view?usp=sharing

You can see the fonts have changed, and some characters are now all in bold. Even the menu fonts are changed. I upgraded from the 0.1 original version of the plug-in. Any help would be appreciated!