Merge pull request #59 from daniel-murray/master

Initial attempt at a readme/documentation
Update documentation
Call SetGameDescription from OnConfigsExecuted
Public beta release

* Restore optional steamtools inclusion
* Fix enabled start-up GameDescription race condition
* Auto-generate plugin config
Use SetConVarInt, instead of ServerCommand
Add warning to documentation
Add license
Create archive skeleton

* include files are relative symlinks to smlib Git submodule,
  and out of tree sourcemod/sourcemod-central HG repo
Update submodule
Modify the ignore rules

No reason to track the out of tree symlinks.
Ignoring everything but smlib in the repo.
Fix some convar typos
Add alliedmod forum links