Fix examples, tests and update rocket integration #40

	name: Code Style

	on:
	push:
	pull_request:
	branches:
	# Branches from forks have the form 'user:branch-name' so we only run
	# this job on pull_request events for branches that look like fork
	# branches. Without this we would end up running this job twice for non
	# forked PRs, once for the push and then once for opening the PR.
	- ':'
	jobs:
	build:

	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@master
	- name: Check for leftover println
	run: ./tests/left_over_println.sh
	- name: Check formatting
	run: cargo fmt --all -- --check

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