REV: change lint config

Two changes:

- anon: true, to allow to omit space in anonymous function declaration. The
original rule is too strict. And many code in most Javascript projects also
allow this rule.

- devel: true, to allow console function call. We have to pay more attention to
this. This rule allows us to write console.error to log error message, however
console.log is also allowed. Be careful, please remove all unnecessary
console.log and console.error that are specific to debug.

Change-Id: I269bdffa7138481fe714081e6106f79626452d3f