Lua not LUA

http://www.lua.org/about.html
fix Lua2Il link
Spelling fix, Ref to Mono 1.1 as current removed.
Fixed link to GitHub repo in docs
Merge pull request #37 from i-e-b/patch-1

Spelling fix, Ref to Mono 1.1 as current removed.
Merge pull request #34 from Mailaender/patch-1

Fixed spelling for Lua
Get rid of Lua2IL and replace it with NLua

See #34.
Updated github-pages to latest version and made some small changes to HTML
added Travis CI