Fixes that directional light sources were more or less broken in the deferred pass and normalizes the Blinn-Phong shading model (makes it energy conserving).

* Tweaks all lighting values accordingly
* Adds different specular intensities for water at night and during the day
Tweaks some more lighting related values and removes that the HDR exposure threshold is different from the one used during daytime (removes fading at dawn/noon).
Slightly tweaks forward chunk shading parameters to match the deferred counterparts.
Increased light intensity during nights by 2.5% to match the overall setting.
Adds some more water related lighting tweaks.
Bat for gradlew.bat idea

Just makes setup alot easier rather than navigating paths in cmd line
Runs gradlew for intellij, first running clean

Just makes setup alot easier rather than navigating paths in cmd line.
Make setup for new programmers easier.
removed redundant line
Merge pull request #671 from AaronLS/develop

Helper bat to create/refresh intellij project.