If we do not do this a map could be initialized twice times or more
when restoring a page with a map causing weird UI effects and
loading some map layers also twice times or more.
Need to add a maps array to be able to store all initialized
(visible) maps so we can destroy them when needed. Notice that
we are destroying maps also when admin settings tabs changes
(only visible ones), this is again to avoid to re-initialize map more
than once when users navigate through settings tabs, another
option to the settings issue could be to detect if the map was
already initialized to skip uneeded initialization.
For now we're only adding rules related to spacing and double quotes,
following the same rules we use in Ruby, which are the same rules
CoffeeScript followed when compiling these files.
We're also using the recommended ESLint rules, which will warn us about
many JavaScript common pitfalls, the `strict` rule which enforces using
strict mode, and the `no-console` rule, which will prevent us from
shipping code meant for debugging.
Although it's arguably more common to use the JSON format to define
these rules, I've chosen YAML because it's the format we use in all our
linters.
These statements were automatically added by CoffeeScript.
I'm only removing the obvious cases; there might be more cases where the
`return` statement isn't necessary.
