Allowance module: Release 0.1.1 (#493)

This PR makes the necessary preparations for the long-awaited release of
the allowance module.

- Adds changelog
- Adds the audit report from Ackee
- Changes version numbers

modules/allowances/CHANGELOG.md

@@ -0,0 +1,31 @@
+# Changelog
+
+This changelog only contains changes starting from version 0.1.1
+
+# Version 0.1.1
+
+## Compiler settings
+
+Solidity compiler: [0.7.6](https://github.com/ethereum/solidity/releases/tag/v0.7.6)
+
+Solidity optimizer: disabled
+
+## Expected addresses
+
+- `AllowanceModule` at `0xAA46724893dedD72658219405185Fb0Fc91e091C`
+
+## Changes
+
+### General
+
+#### Fix the EIP-712 transfer typehash
+
+Issue: [#70](https://github.com/safe-global/safe-modules/issues/70)
+
+The typehash for the transfer was incorrect, making it impossible to use the module with EIP-712 signatures.
+
+#### Add a check for `resetTimeMin` 
+
+For recurring allowances, the `resetTimeMin` must be greater than 0. However, the check was missing, making it possible to specify a `resetTimeMin` of 0, resulting in a divide by zero error and the transaction consuming all gas.
+
+The change was suggested by the [Ackee blockchain](https://ackee.xyz/) during the audit of the module.

modules/allowances/contracts/AllowanceModule.sol

@@ -20,7 +20,7 @@ interface ISafe {
 
 contract AllowanceModule is SignatureDecoder {
     string public constant NAME = "Allowance Module";
-    string public constant VERSION = "0.1.0";
+    string public constant VERSION = "0.1.1";
 
     bytes32 public constant DOMAIN_SEPARATOR_TYPEHASH = 0x47e79534a245952e8b16893a336b85a3d9ea9fa8c573f3d803afb92a79469218;
     // keccak256(

modules/allowances/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@safe-global/safe-allowance-module",
-  "version": "1.0.0",
+  "version": "0.1.1",
   "description": "Allowance module for the gnosis safe",
   "keywords": [
     "Ethereum",