Added guidelines for clear Markdown formatting and language requirements
Update CONTRIBUTING.md

Fixed a minor grammar mistake and changed "will be closed" regarding posting in English to be slightly more friendly.
Added n-sided prism primitive
Made the cleanup suggested by @ToxicBakery. Also fixed an issue related to terminated cones due to me trying to get fancy with the math and dividing by 0.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Fixed IllegalArguementException being thrown for sides > 3. Ooops.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>
Merge pull request #691 from Tenkiv/NPrism

Added n-sided prism primitive
Finished updating MaskPass with the new Scene render signature
Added ClearMaskPass which clears stencil test set by previous MaskPass
render passes
Added clause for 10-day limit for stale issues

As per our discussion in the e-mail, I added the 10 day stale clause since this is the duration we all agreed on.
Slight wording change for the issue section title
Added Javadoc to the class and removed an unused constructor argument
Merge branch 'master' of https://github.com/MasDennis/Rajawali.git
Added a check for MaskPass and ClearMaskPass in the render method.
Added PostProcessingCopyMaterial with simpler GLSL shader code than
SimpleMaterial.
Added a method named logSystemInformation(). This outputs hardware and OpenGL information to LogCat which should be helpful when people log issues.
It should be called in RajawaliRenderer.initScene().
Moved the system & opengl logging method to where it belongs: RajLog.
Added EffectComposer to RajawaliRenderer
Merge branch 'master' of https://github.com/MasDennis/Rajawali.git
Added maximum texture image unit information to logSystemInformation()
Added eccentricity option to NPrism.

Signed-off-by: Jared Woolston <jwoolston@tenkiv.com>