Removing ModifiedBulletSim for now, it's not working properly and there's no-one working on it at the moment
Merge remote-tracking branch 'upstream/master'
Revert "Removing ModifiedBulletSim for now, it's not working properly and there's no-one working on it at the moment"

This reverts commit 178ef9df71afbc5600a8a46b1397260f09638972.
Fixes for giving items and taking items from folders.
Fix another missing packet block.
Fix adding too many path delimiters in PathHelpers that was breaking loading of regions.
Fix back fixes for #1133 from Async-Sim.
Fix a null ref on creating roles.
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:fly-man-/Aurora-Sim
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of https://github.com/fly-man-/Aurora-Sim
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Merge branch 'master' of github.com:fly-man-/Aurora-Sim