added module hr_worked_days_hourly_rate
fixed spelling error
Modified docstring and added fields date_from and date_to
Added a field for the rate in percentage by which to multiplicate the hourly rate.
removed required attribute on hourly_rate and rate fields.
put back required attribute, replaced %Y-%m-%d with DEFAULT_SERVER_DATE_FORMAT, fixed comment
Added language team and last-translator in fr.po
Added field total that returns the total wage earned for a worked_days record
Simplified hr_payslip_view.xml
Changed assertTrue for assertEqual and simplified default dates on worked_days
Merge pull request #37 from savoirfairelinux/7.0-ddufresne-worked-days_hourly_rates

Add module hr_worked_days_hourly_rate