Allows you to filter TimeEntry with parameters from_date and to_date

[aaloy]

as the spend_on parameter and others filters does not work, I've checked what redmine does in the web and added the same parameters. As from is a reserved word I've changed to from_date and to_date to be more clear.

Actually this allows you to filter TimeEntries in an range of days.

[maxtepkeev]

Thanks!

I've checked that from/to also works in Redmine 2.3.x and should also work in 2.4.x. So I believe this should be a preferred way to retrieve time entries for a range of dates.

Because that was a specific time entry problem I removed the kwargs substitution from Redmine.request and introduced a new Resource.translate_params class method which is now responsible for translation of params per resource if needed. This will allow us to easily translate parameters per resource if needed in the future.

[aaloy]

great! Thank you!