I was able to install this plugin successfully. I created only one snippet as such:
Upon clicking "save and activate" I get this error:
Fatal error: Call to undefined function info() in /home/www/ehepperle.com/sites/ehw/codeslayer2010/wp-content/plugins/code-snippets/code-snippets.php(1030) : eval()'d code on line 1
When I subsequently tried to deactivate it, I jumps to that error. When I then tried to just delete it, jumps to that error again.
Basicall, my whole WordPress install is broke because this plugin won't uninstall, deactive, leave, nor un-do in any sort of way. I had high hopes for it, but unfortunately cannot recommend it due to it breaking my WordPress.