* Add missing globals from luacheck config
* Fix luacheck warnings in all lua files
* Re-enable luacheck in Travis
* Speed up Travis by using preinstalled LuaRocks
* Fix more luacheck warnings in httpserver lua module
* Fix DCC module and add appropriate definitions to luacheck config.
* Change inline comments from ignoring block to only ignore specific line
* Add Luacheck for Windows and enable it for both Windows and Linux
* Change luacheck exceptions and fix errors from 1st round of polishing
* Add retry and timeout params to wget
galjonsfigur
Martin Han