Merge pull request #15 from burbas/patch-2

Update mysql version

rebar.config

@@ -1,4 +1,4 @@
 {deps, [
-    {mysql, ".*", {git, "https://github.com/mysql-otp/mysql-otp.git", {tag, "1.1.1"}}},
+    {mysql, ".*", {git, "https://github.com/mysql-otp/mysql-otp.git", {tag, "1.2.0"}}},
     {poolboy, ".*", {git, "https://github.com/devinus/poolboy.git", {tag, "1.5.1"}}}
 ]}.