Fixed an division by zero issue

https://github.com/robotboy655/gmod-hoverboards/commit/fcc21bb5ec266092212042e99fe9ebe8a183fb9b

* Nothing was changed, it was a test

* Disable physgun on the internal hull entity
* Disallow noclip on the hoverboard
* Improvements to getting stuck in a wall
* Camera-inside-wall improvements
* Pressing E on upside down Hoverboard will try to flip it
* Fixed unexpected/unintended velocity gain when riding on less than all thrusters
* Reduce weird angles when turning
* Added an option to disable Hoverboard damage
* Added "Allow jump on water" option
* Minor UI tweaks - Added fancy tool help
* Added Preset support + better default values

* Improved the Sandbox Tool UI - Moved more important settings on top
* You can now use your mouse scroll wheel to adjust the camera view distance
* Increased maximum value for Turn attribute
* Mouse Control/Turning now is quicker with higher Turn attribute values
* Jumping force is now independent of moving speed. This means that the Jump attribute has an effect while stationary
* Fixed being able to switch weapons while on a hoverboard, resulting in weird things such as Tool ghosts showing up, physgun glow showing up, and others.
* Moved camera center point a bit lower to help prevent the camera ending up inside walls
* Many other bugfixes

* Removed maps, they were not created by me, and can be downloaded separately anyway
* Fixed Lua errors when not using the Mouse Look/Controls
* Adjusted thruster positions to make the front of the hoverboard on the level with its back

* Code clean up, nothing was changed.

* Got rid of the Max Points system
* Fixed some errors for Next Version of GMod.

* Fixed player color error

* Changed "Can Fall" default value to 1
* Fixed player color/skin/bodygroups not working on the board