Update Composer dependencies (2018-02-28)
Update Composer dependencies (2018-02-28)

```
Loading composer repositories with package information
Updating dependencies (including require-dev)
Package operations: 0 installs, 17 updates, 0 removals
  - Updating symfony/process (v2.8.32 => v2.8.34):  Checking out 905efe9002
  - Updating symfony/finder (v2.8.32 => v2.8.34):  Checking out 9786ccb6a1
  - Updating symfony/filesystem (v2.8.32 => v2.8.34):  Checking out 1f4e8351e0
  - Updating symfony/polyfill-mbstring (v1.6.0 => v1.7.0):  Checking out 78be803ce0
  - Updating symfony/debug (v2.8.32 => v2.8.34):  Checking out 35e36287fc
  - Updating symfony/console (v2.8.32 => v2.8.34):  Checking out 162ca7d0ea
  - Updating seld/jsonlint (1.6.2 => 1.7.1):  Checking out d15f59a67f
  - Updating justinrainbow/json-schema (5.2.6 => 5.2.7):  Checking out 8560d43145
  - Updating composer/spdx-licenses (1.1.6 => 1.3.0):  Checking out 7e111c50db
  - Updating composer/composer (1.5.6 => 1.6.3):  Checking out 88a69fda0f
  - Updating symfony/config (v2.8.32 => v2.8.34):  Checking out 17605ff583
  - Updating symfony/dependency-injection (v2.8.32 => v2.8.34):	 Checking out 91ad61e6f1
  - Updating symfony/event-dispatcher (v2.8.32 => v2.8.34):  Checking out d64be24fc1
  - Updating symfony/translation (v2.8.32 => v2.8.34):	Checking out 72235c1121
  - Updating symfony/yaml (v2.8.32 => v2.8.34):	 Checking out be720fcfae
  - Updating wimg/php-compatibility (8.0.1 => 8.1.0): Loading from cache
Writing lock file
Generating autoload files
```

rodrigoprimo/wp-cli,trepmal/wp-cli,rodrigoprimo/wp-cli,trepmal/wp-cli,GaryJones/wp-cli,aaemnnosttv/wp-cli,aaemnnosttv/wp-cli,2ndkauboy/wp-cli,trepmal/wp-cli,GaryJones/wp-cli,aaemnnosttv/wp-cli,GaryJones/wp-cli,2ndkauboy/wp-cli,rodrigoprimo/wp-cli,2ndkauboy/wp-cli