Merge branch 'develop'

* develop:
  Rust CI with github actions
  Cut release 0.1.1
  Fix errors from upgrades (mainly to lopdf 0.24.0)
  Remove (superfluous) extra::lopdf module
  Bump lock file
  Add missing num-traits dependency
  Bump all dependencies
  Build with cargo 1.44
  Switch unused doc comments to normal comments
  Replace trait objects with impl
  Update changelog post-release

Author: David Baynard

.github/workflows/rust.yml

@@ -0,0 +1,22 @@
+name: Rust
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Build
+      run: cargo build --verbose
+    - name: Run tests
+      run: cargo test --verbose

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+
+## [0.1.1] — 2020-06-21
+
+-   Builds without warnings with Cargo 1.4.4
+-   Upgrades dependencies
+
 ## [0.1.0] — 2018-01-10
 
 -   Initial version
+
+[0.1.1]: https://github.com/dbaynard/booklet/compare/0.1.0...0.1.1
+[0.1.0]: https://github.com/dbaynard/booklet/tree/0.1.0