engine: corrects offsets for the guiobjectview gui element which displays materialized meshes, and exposes it's specialized renderering system to the postfx subsystem.
immediate purpose: corrected display
long term purpose: deferred display.
Create CONTRIBUTING.md
Fixed typos.
Merge pull request #846 from Azaezel/guiobjectview

guiobjectview corrections
Andrew's fix for ear transform with detached camera.
Merge pull request #870 from eightyeight/fix-ear-transform

Andrew's fix for ear transform with detached camera
Enable gamepad input when the startup GUI wakes.
Merge pull request #874 from eightyeight/enable-gamepad-earlier

Enable gamepad input when the startup GUI wakes
Use existing methods instead of incorrect maths.
Merge pull request #875 from eightyeight/fix-tsshape-bounds-collision

Use existing methods instead of incorrect maths
Prevent crash when loading Player with no shape.
Merge pull request #878 from eightyeight/issue-98

Prevent crash when loading Player with no shape
Increment vertex pointer by 3, not 1.
Improve documentation on getCursorPos and fix cursorInControl.
Merge pull request #880 from eightyeight/issue-180

Improve documentation on getCursorPos and fix cursorInControl
Merge pull request #879 from eightyeight/issue-825

Increment vertex pointer by 3, not 1
Mention code style guidelines.
Merge pull request #868 from GarageGames/contributing-doc

Contributing doc