Change the sandbox example to not use wingspan-forms through bower.

There's already code in place to copy in the compiled output from
directories above into the sandbox webapp lib.
Replace class with className in sandbox example's Page.js
Replace calls to _.object() for fieldInfo with object literals

Newer versions of webstorm/intellij now support syntax coloring of these
embedded object literals in the jsx, without treating them as some kind
of syntax error.... can true jsx support be far behind???
Add missing tooltip icons to the forms library

They were present in the TMF but not in wingspan-forms itself.
I'm not sure if there's a more concise way to specify the copy
operation; there should be, but I didn't find it yet and I'd like to
move on from this.
Attach form tooltips in the sandbox example. Fixes #53