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 salary_rule record because it makes hr_payroll_account test fail
Reactivate UNIT_TEST
Addedintall wkhtmltopdf in .travis.yml because it is a depedency for module account_financial_report_webkit
Changed version of wkhtmltopdf to install on travis
Removed sum_deductions rounding
[IMP] Display form view
[FIX] Typo
Merge pull request #27 from savoirfairelinux/7.0-ddufresne-income_tax_deductions

[ADD] Income tax deductions
Merge pull request #28 from savoirfairelinux/7.0-ddufresne-fix_salary_rules

[IMP] Remove salary_rule record because it makes hr_payroll_account test fail
Merge pull request #30 from savoirfairelinux/7.0-display-expense-form-view

[IMP] Display expense line form view
added module l10n_ca_hr_employee_benefits
added new line at end of file
Added parental insurance plan exemption
Changed the description of models and changed dates formats to DEFAULT_SERVER_DATE_FORMAT