Initial commit
moving the plugins
proper requirements for root-folder:composer.json so this thing is runnable again
added a composer-installer for candybox-plugins and candybox-modules, added a composer.json for each plugin
Merge remote-tracking branch 'gitsplit/master' into release/5.0

https://github.com/vangorra/git_split.git

steps:
> git remote add gitsplit https://github.com/vangorra/git_split.git
> git fetch gitsplit
> git merge -s ours --no-commit gitsplit/master
> git read-tree --prefix=tools/gitsplit -u gitsplit/master
> git commit ...