Merge pull request #1236 from am11/master

NodeExecBase: Fixes "delete map file" condition
Revert "NodeExecBase: Fixes "delete map file" condition"
Markdown: Checkout and update only on change.
NodeExecBase: Checkout before first save.
Merge pull request #1237 from am11/revert-1236-master

Revert "NodeExecBase: Fixes "delete map file" condition"
Merge pull request #1240 from am11/node-base

NodeExecBase: Checkout before first save
Merge pull request #1239 from am11/compiler-runner

Markdown: Checkout and update only on change