Moved some lines of code. Renamed a function.

- Moved dynamic array initialization from register_plugin to
register_native. Now arrays will be initialized a little bit sooner. I'm
not sure if this could've caused some bugs, but another plugin did have
a problem with this.
- Renamed writeConfig to cvar_saveConfig because this plugin will need
to deal with configs of different types in the future. (clcmd aliases
config is in the making)