Empty implmentations of flock, mprotect and msync
move file packager logging into debug-only
add default extra arguments to beginning of commandline arguments, so that users can override them (not recommended though)
properly deprecate all arguments to --minify except for 0
also use LLVM_ROOT to detect when we need to clear the cache
Merge pull request #1453 from yukoba/flock-mprotect-msync

Empty implmentations of flock, mprotect and msync
Merge pull request #1457 from inolen/fs_init_split

split up FS.init
Updated rename tests
enable permissions checks after initialization
 - convert to new stream API function names
 - convert all indexing into FS.streams to use FS.getStream
Split out createPreloadedFile to FSCOM
initial VFS work
hacked createLazyFile to work with the new FS code