Added module l10n_ca_hr_income_tax_deductions
Fixed licence
Flake8
Added possibility choose between periodic and annual amount. Revised sum_deductions method.
Fixed error in sum_deductions method
Added rounding of sum_deductions result
Removed sum_deductions rounding
Merge pull request #27 from savoirfairelinux/7.0-ddufresne-income_tax_deductions

[ADD] Income tax deductions