Conditionals

[facerix]

The templating functionality would be much more useful if it supported conditional blocks, like so:

button#btnAgree(agree==true ? "class=checked" : ""){I Agree}
<button#btnDisagree(agree==false ? "class=checked" : ""){Disagree}

I realize we need to have some kind of eval-like method in order to do this, and I realize the security implications, but the templating function just isn't robust enough to be usable in a lot of cases where it would otherwise be very nice to have (e.g. widgets without any external dependencies on jquery/handlebars/etc).

[facerix]

Partially addressed by 984d73b; documentation and certain edge cases not yet complete.