Jsoneditor

- Some fixes/improvements in `parseJS` (to parse a JSON object from a JavaScript
object).
- Fixed the lack of a semi colon at end of the bundled files.

- Replaced parsing of JavaScript objects into JSON from `eval` to a dedicated
`parseJS` function.

- JSONEditor now accepts JavaScript objects as input, and can turn them into
valid JSON. For example `{a:2,b:'str'}` can be turned into `{"a":2,"b":"str"}`.
- Implemented an option `editable`, a callback function, which allows to set
individual nodes (their field and/or value) editable or read-only.
- Fixed: shortcut keys to manipulate the nodes are now disabled when mode
is `form` or `view`.

- Large code reorganization.
- Editor must be loaded as `new JSONEditor(...)` instead of
`new jsoneditor.JSONEditor(...)`.
- Css is not automatically loaded anymore when using AMD.
- Web application has been moved to another project.

- Fixed positioning issue of the action menu.

- Fixed a positioning issue of the action menu again.
- Fixed an issue with non-breaking space characters.