Donation Receipts 1.7-beta1

New features

• [#69] Improved processing of bounced/returned receipts sent by email - by @systopia
• [#68] Provide presets for watermarks in the receipt template - by @jensschuppe, @systopia
• [#50] International number_to_words function - by @sluc23, @peth-systopia
• [#78] German number_to_words function - remove spaces in cardinal numbers - by @bjendres, @jensschuppe

Bugfixes

• [#44] Missing tokens for addressee and greeting fields - by @thomst, @kenleegit, @bjendres, @jensschuppe