[aux] extinguish compatibility code
[main] remove references to config.luaotfload.compatibility
[aux] remove reference to unnecessary globals
[fontloader] sync with Context as of 2014-01-07
[main] substitute new filenames for node-inj.lua and font-otn.lua
[doc] update file names in manual
[doc] update file graph
[main] obliterate reference to obsolete font-otn.lua
[fontloader] import luatex-fonts-inj.lua, luatex-fonts-otn.lua
Merge pull request #176 from phi-gamma/texlive2014

sync with Context, wipe out more compatibility code