Add Eclipse code formatter for JavaScript Conventions
Use 2 spaces in JS code formatter
Rename suppressionsLocation -> suppressions.location
Add line length warning; disable indentation check

Indentation check doesn't seem to like continuations
Rename formatter profiles to omit version
Enable line wrapping where necessary
Add code styles for IntelliJ IDEA (except Java/JS)

For Java, GWT & JavaScript, please use Eclipse Code Formatter plugin.