Hotfix release 3.3.17

- Mark the package as abandoned

Update license and contao-Core requirement

Fix the problem with the options for the sub widget

Merge pull request #240 from discordier/hotfix/issue-239

Fix #239 - make dc-general optional again

Merge pull request #234 from zonky2/Hotfix_add_title_at_pagePicker_an…

…d_filePicker_modal_window

Hotfix add title at pagePicker and filePicker modal window

Merge pull request #226 from menatwork/davidmaack-patch-1

Update multicolumnwizard_be.js

Merge pull request #208 from Aybee/Aybee-patch-2

Update multicolumnwizard_be_src.js

Solves a problem with the dataContainer->activeRecord

More PHP7 compat

Fixed forgotten line, see #193 (comment)

Merge pull request #211 from garyee/Branch_3.3.5

fixed Dateformat FE php error