Update Gradle Wrapper 1.1 -> 1.4
Replace tab with 4 spaces and remove some spaces
Adds final support for volumetric light shafts (available with the "Insane" quality setting).

- Tweaks various rendering related parameters
- Removes old cloud shader
- Fixes a bug related to TeraEd's property sliders
Fixes misplaced beginRenderScene() and endRenderScene() calls.
Fixes sky shader compile warnings.
Merge pull request #433 from mkalb/gradle14

Update gradle version (1.1 -> 1.4)
* fix issue with LocalChunkProvider where multiple chunks are generated for the same chunk position
+ improved fix for LocalChunkProvider
* further improvement of the bugfix for LocalChunkProvider
+ added log messages to indicate redundant chunk generation
Merge pull request #437 from mbrotz/bugfixes

Important issue with LocalChunkProvider
Tweaks/extends sky rendering and adds new sky renderings for day and night (I will add high-res versions of the skies as soon as they are finished).

- Adds a new properties to the "sky" shader
- Adds new highlight for the moon (separate from the sun highlight)
- Removes sky cube maps and replaces them with spherical mapped 2D textures
Adds fading for the sun and moon highlights in the "sky" shader.
Adds new high-res day sky.
Adds new high-res night sky.
*  made plants replaceable
*  made water and lava replaceable
-  removed shapes from bricks, allowing to use them as slopes/steps as well
* tweaked the ItemSystem to be able to replace targetable blocks (like plants that can still be broken "by hand")
Merge pull request #441 from skaldarnar/develop

Some minor tweaks to block placement handling and some blocks.
Adds some minor tweaks.

- Adds a new property that can be used to set the blur intensity on the sky (current defaults to 100%)
- Fixes that motion blur with a blur intensity of 0 was active but almost invisible
- Adds various other properties to the Post Processing Renderer
- Adds new enum for various FBO types (more to come) to the Post Processing Renderer
Halves the amount of samples used for the light shafts post processing effect.
Adjusts luminance.