ItemStore - Inventory for DarkRP

1. Lowercased the addon folders because I get support tickets daily complaining about it

1. Entirely cosmetic change: Now using dates for versions. It's easier to keep track of.
2. Fixed a error that happens when you try to equip an ammoless weapon

1. Fixed mysql insert failures

Stable version:

1. Fixed tmysql4 handler error reporting

* Fixed another ammo dupe

* Fixed amount indicator not appearing in new GMod update

No beta updates today, just a small fix for the stable version.

1. Weapons over the stack limit can no longer be picked up.

1. Weapons no longer give an extra clip when used out of the inventory

``

1. Backported networking code from beta to stable version. Will hopefully resolve many "Overflowed reliable channel" errors.
2. No longer uses Add New Item.bat file to add custom items, use the CustomItems table in config.lua! `` No beta updates today, sorry! This is strictly for stable version users.

* Weapons no longer deduct from their amount if they somehow don't get given

+ Wallet manipulation will now call DarkRP.storeMoney when used

* Fixed itemstore_import not properly importing steamids