Capture chdir
Update traced syscall list from spreadsheet
Add support for fixing the syscall return value
fix writeData offset bug
First run-through of a VFS implementation
Start building a VFS class to handle the VFS layer
start implementing a basic filesystem API
Implement openat() and split out a NativeFilesystem class
Add support for mounting arbitrary filesystems
Merge branch 'master' into vfs

Conflicts:
	src/sandbox-node-module.cpp
	src/sandbox.cpp
Move the NodeSandbox class definition into its own header
Move DirentBuilder to its own files
Add support for other dirent types
Expose Sandbox VFS
Start implementing nodejs sandbox VFS API
Rewrite virtual/real FD mapping to be less ambiguous
Implement lseek
Use std::vector instead of malloc(char) to fix buffer overflow
Implement write and access
Permit non-virtual FDs to go around the VFS layer