Grunt build problems

[pedroetb]

There is a problem when compiling the project. It's expected to work running npm install and then grunt, but errors came up instead.

Also, if you force compilation, the files created have a different name from the prebuilt ones (the prebuilt are capitalized).

In addition, I think it would be useful keeping the same filename for built files between versions (there are better places to show version numbers, in package.json for example), so then it isn't necessary to change any paths at projects depending on this one.