Todo-list of fixes and improvements

[OgelGames]

Mod stuff

• Add luacheck - 49e84e4
• Fix long lines (ignored by luacheck currently)
• Use mod.conf - d479ec3
• Move documentation in readme to separate files - 9c0cb11

Bugs

• Fix piston ignoring protection (Pistons should check protections pandorabox-io/pandorabox.io#616) - ad06249
• Add fix for NIC (digiline NIC crash pandorabox-io/pandorabox.io#539)
• Fix game controller physics override - b16d25c
• Fix digistuff:movestone bugs and add recipe (might be fixed on upstream, as it is a new feature)
• Add alternative digistuff:piezo recipe (requires quartz currently) - 6722e18

Improvements

• Add ability to POST with NIC (Add ability to POST from digistuff NIC pandorabox-io/pandorabox.io#183)
• Add support for more formspec elements in touchscreen (Touchscreen improvements #21)

[S-S-X]

Could also revisit custom headers support when/if adding support for POST requests, basic stuff without cleanup was part of JSON support PR but did not make it into final product: 0d2d670
Also on PR there's comment with simple header data cleanup code: #17 (comment) (and testing)