Bump version to v3.0.12

Author: Katrina Owen

CHANGELOG.md

@@ -6,6 +6,8 @@ The exercism CLI follows [semantic versioning](http://semver.org/).
 
 ## Next Release
 * **Your contribution here**
+
+## v3.0.12 (2019-07-07)
 * [#770](https://github.com/exercism/cli/pull/770) Print API error messages in submit command - [@Smarticles101]
 * [#763](https://github.com/exercism/cli/pull/763) Add Fish shell tab completions - [@John-Goff]
 * [#806](https://github.com/exercism/cli/pull/806) Make Zsh shell tab completions work on $fpath - [@QuLogic]

cmd/version.go

@@ -9,7 +9,7 @@ import (
 
 // Version is the version of the current build.
 // It follows semantic versioning.
-const Version = "3.0.11"
+const Version = "3.0.12"
 
 // checkLatest flag for version command.
 var checkLatest bool