Merge pull request #5 from lualatex/master

update with lualatex master
Merge pull request #6 from lualatex/master

Sync with latest lualatex
Adding a few auxiliary functions for module availability and version checking
Updating and simplifying
Bump version and update documentation
Small doc update
Fixing small error in module date requirement
Update Changes
Adding a few more accessors functions
No .tds.zip on CTAN
fix scoping for fastcopy()
Merge pull request #7 from phi-gamma/master

fix fastcopy()
Merge pull request #8 from eroux/master

new functions for modules and doc updates