Collective.contentrules.mailtogroup

------------------

- Nothing changed yet.

------------------

- Add more information about regressions to README.rst.
[ida, fulv]

------------------

- I messed up 1.6.1 and made a brown bag release.
[fulv]

------------------

- Add note about unfixed regressions and more verbose install-instructions. [ida]

----------------

- Add test case for empty recipients.
[fulv]

- Add support for Plone 5.0 and 5.1. On Plone 5.x we use z3c.form instead of formlib.
[fulv]

- Drop support for Plone 4.0, Plone 4.1 and Plone 4.2.
Package may work, but we are no longer testing against these versions as Python 2.6 is no longer supported on code analysis.
[hvelarde]

- Use plone.app.contentrules.ManageContentRules permission instead of cmf.ManagePortal.
[fulv]

-------------------

- Fixed tests and version numbering [kcleong]

- Fixed source address assignment. Now doesn't break the rule execution[cekk]

- Enabled the use of string interpolator for string substitutions [cekk]

- Add Brazilian Portuguese and Spanish translations.
[hvelarde]

- Fix package dependencies.
[hvelarde]