Scaladoc Comments for Packages

I couldn't find the Scaloid API online.  I took the liberty of generating one (mvn scala:doc) on my fork, created the gh-pages branch and pushed it (http://keithpinson.github.com/scaloid/target/site/scaladocs/index.html#org.scaloid.package).

I am sure you will improve my package comments if you pull this request, but it's a start.  I also corrected a typo and fixed an error.  

Thanks for all the great work, 

Keith