add bors to ink repo (#357)

* add bors to ink repo

* travis fails on a *.tmp branch; turned off 'build pushed branches' from config and set only 'master' here because travis anyways runs on PRs

* statuses reviewed, reordered

* less statuses, longer timeout (10 min didn't work)

.gitlab-ci.yml

@@ -53,7 +53,7 @@ variables:
     - /^v[0-9]+\.[0-9]+.*$/        # i.e. v1.0, v2.1rc1
     - schedules
     - web
-    - /^[0-9]+$/                   # PRs
+    - branches
   dependencies:                    []
   interruptible:                   true
   retry:

.travis.yml

@@ -3,6 +3,10 @@ cache: cargo
 dist: trusty
 sudo: true
 
+branches:
+  only:
+  - master
+
 rust:
   - nightly-2019-11-17
 

bors.toml

+status = [
+    "ci/gitlab/gitlab.parity.io"
+]
+# The default is one hour (3600 sec).
+timeout_sec = 1800
+use_squash_merge = true
+required_approvals = 1