Added version specific global variable to avoid addon conflicts. Edited README

Author: Winded

README.md

@@ -218,4 +218,7 @@ Custom types can be registered with _BiValues.RegisterBindType_. There are some
  - **Remove()** - Called when the binding is removed (unbound). You should remove your callback hooks here
  - **SetValue(value)** - Called when the value is changed from elsewhere than the binding itself. You should handle applying the value change to your bound entity/element here
 
-You can better understand how bindings work by looking at the default bindings.
+You can better understand how bindings work by looking at the default bindings.
+
+## Conflicting addons
+It's possible that other addons a user has installed are using BiValues. This wouldn't be a problem if they used the exact same version as your addon, but they probably don't. To avoid conflicts, instead of using the _BiValues_ global variable, use _BiValuesV000_, replacing the zeroes with the version of BiValues that you are using. This way, you won't be using a different version of BiValues than you think and your code won't break.

bivalues.lua

@@ -24,7 +24,7 @@ THE SOFTWARE.
 
 --]]
 
-if _G["BiValues"] then return; end
+local VERSION = "021";
 
 ---
 -- BiValues table definition
@@ -737,4 +737,5 @@ end
 ---
 
 AddCSLuaFile();
+_G["BiValuesV" .. VERSION] = BV;
 _G.BiValues = BV;