Merge pull request #42 from BlackPhlox/bevy_0.12

Upgraded to Bevy 0.12 and latest LWIM

.github/workflows/bevy_main.yml

@@ -0,0 +1,27 @@
+# From:
+# https://bevy-cheatbook.github.io/setup/bevy-git.html#ci-setup
+name: check if code still compiles
+
+on:
+  schedule:
+    - cron: '0 8 * * 5'
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Install Dependencies
+        run: sudo apt-get update && sudo apt-get install g++ pkg-config libx11-dev libasound2-dev libudev-dev
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+
+      - name: Check code
+        run: cargo update && cargo check --lib --examples

.gitignore

@@ -1,6 +1,4 @@
 /target
 
 # These are backup files generated by rustfmt
-**/*.rs.bk
-
-**/Cargo.lock
+**/*.rs.bk