[parsers,features] fix missing localized math.ceil()
[doc,sty] move luaotfload.sty out of the DTX

Signed-off-by: Philipp Gesang <phg42.2a@gmail.com>
[doc] move documentation to ./doc
[doc] add Makefile for doc subtree
[doc,*] fix TDS install rules in Makefile
Merge pull request #194 from phi-gamma/texlive2014

move documentation to ./doc subdir