Gameplay selection
Add more smarts to persisting selection and automatic selection of world generators.
Merge branch 'develop' of https://github.com/MovingBlocks/Terasology into GameplaySelection
Support for checking region relevance (rather than per block).
Merge pull request #1214 from MarcinSc/develop

Support for checking region relevance (rather than per block).
Prevent deselecting the gameplay module from the modules screen.  Color it ocean blue.
Fixes an issue with block changes (and 16-bit block ids), as well as some other instances were byte was still used for block ids (only testcases).  #1210
Merge pull request #1220 from shartte/short-block-id-fix

Fixes an issue with block changes (and 16-bit block ids), as well as som...
Added a rendering setting to scale the FBOs to effectively reduce (or increase) the resolution of the game scene without affecting the resolution of the UI. I (arbitrarily) set the range from 25% to 200%. Increasing the size should essentially be like supersampling. Also added a slider to the video settings dialog to control this.
Merge #1221 from @shartte - resolution scaling, fixes #1172
Merge #1199 by @Josharias - improved gameplay selection UI
PR tweaks: label adjustments and update credits
Merge branch 'develop' of github.com:MovingBlocks/Terasology into develop