Update CHANGELOG

CHANGELOG.md

+v 1.1.0
+- Use Go 1.5
+- Change license to MIT
+- Add docker-machine based auto-scaling for docker executor
+- Add support for external cache server
+- Add support for `sh`, allowing to run builds on images without the `bash`
+- Add support for passing the artifacts between stages
+- Add `docker-pull-policy`, it removes the `docker-image-ttl`
+- Add `docker-network-mode`
+- Add `git` to gitlab-runner:alpine
+- Add support for `CapAdd`, `CapDrop` and `Devices` by docker executor
+- Add support for passing the name of artifacts archive (`artifacts:name`)
+- Refactor: The build trace is now implemented by `network` module
+- Refactor: Remove CGO dependency on Windows
+- Fix: Create alternative aliases for docker services (uses `-`)
+- Fix: VirtualBox port race condition
+- Fix: Create cache for all builds, including tags
+- Fix: Make the shell executor more verbose when the process cannot be started
+- Fix: Pass gitlab-ci.yml variables to build container created by docker executor
+- Fix: Don't restore cache if not defined in gitlab-ci.yml
+- Fix: always use `json-file` when starting docker containers
+
 v 1.0.4
 - Fix support for Windows PowerShell