More comprehensive synced folder validation [GH-1499]
Don't error too early when config.vm.box is not properly set
Human friendly error on exit code 126 from VBoxManage
better comments on the last change
Properly detect in valid provisioners
Allow disabling prepend/append hooks
Only prepend/append once for hooks
Update cHANGELOG
Retry SSH on Errno::EACCES
VBoxManage errors show stderr
Show an error if an invalid network type is used
Don't share default chef folder if doesn't exist on host
Go next if local path doesn't exist for Chef

This avoids issues with nil remote_paths
v1.1.5
Fix issue with Chef solo not using Pathname
Up the version to 1.2.0 development
Initial downloader implementation
Tests for the downloader
Translation for downloader error
Return the value of the yielded block in Busy