Option for JumpTrigger only during snippet expansion
Include handling for expansion from list_snippets
Change default value/check, fix for nested snippets
Pulled from master.
Small refactoring.
Merge branch 'master' into mMontu-master
Started fixing the tests that broke through the remapping change.
Fixed remaining tests.
Be when to map Forward and Backwards Trigger

Only map Forward and Backwards jumping trigger while inside a snippet.
Patch by Marcelo D Montu (mMontu) with fixes by me.