Added toggle option for Light and Lamp tools

Added toggle option for Light and Lamp tools. I had to do some weird
stuff in order not to break lights and lamps in existing saves / dupes.
( All lights would become non-toggle whereas GMod at the moment spawns
only toggle lamps )

I also changed lights to use VPHYSICS instead of PhysicsInitSphere,
because why not?
Fixed cleanup accumulating invalid entities.

The cleanup library would continue to track entities it had already
removed. It now empties an entity list after using it for cleanup.
Reverting for correct line-endings.
Fixed cleanup accumulating invalid entities.

The cleanup library would continue to track entities it had already removed. It now empties an entity list after using it for cleanup.
Trying to fix line-endings. Again.
Merge branch 'master' of git://github.com/garrynewman/garrysmod into patch2
Trying to fix line-endings. Again. Again.
Fixed a bug with skin property
Merge pull request #137 from robotboy655/patch3

Fixed a bug with skin property
Update changes.html
Fixed collision property jumping

Should we make collisions and keep upright properties the way gravity
property is done?
Merge pull request #138 from robotboy655/patch3

Fixed collision property jumping
Adding NextBot Base
Added IsValid check because the player invalid.

http://puu.sh/2b7vy
Merge pull request #152 from Chewgum/patch-2

Added IsValid check because the player invalid.
Merge pull request #136 from Ghor/master

Fixed cleanup accumulating invalid entities.
Merge pull request #133 from robotboy655/patch2

Added toggle option for Light and Lamp tools
Update duplicator.lua

Fix for save errors
Lamp in Toggle mode by default - so it retains old behaviour
The light too