Version bump to republish

Cargo.lock

 
 [[package]]
 name = "casaubon"
-version = "0.3.0"
+version = "0.3.1"
 dependencies = [
  "chrono 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "clap 2.32.0 (registry+https://github.com/rust-lang/crates.io-index)",

Cargo.toml

 [package]
 name = "casaubon"
-version = "0.3.0"
+version = "0.3.1"
 authors = ["Dylan Baker"]
 description = "A feature-poor static site generator"
 license = "MIT"