Merge pull request #49 from phi-gamma/master

man page
Merge pull request #50 from phi-gamma/master

``font-age.lua`` -> ``luaotfload-glyphlist.lua``
also address issue #51
Merge pull request #53 from phi-gamma/master

pdf.js bug and font scaling
Merge pull request #54 from phi-gamma/master

workaround for paths in file lookups
Merge pull request #56 from phi-gamma/master

make node mode work again
Merge pull request #58 from phi-gamma/master

sync; various fixes (node mode, manual etc.)
import legacy files
restore some comments from old dtx
divert Lua<5.2 to legacy script in luaotfload-tool
load legacy code
hack db so as to include full paths
cleanup
add version switch to dtx
add legacy script to Makefile
Merge ../luaotfload-compat
update NEWS