Add config file

Configuration may now be specified in either `$HOME/.alacritty.yml` or
`$HOME/.config/alacritty.yml`. See `alacritty.yml` in the repository
root for an example.

When a configuration file cannot be located, a default configuration is
used.

1 files changed, 3 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index d069daf9..22db5f00 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,9 @@ bitflags = "*"
 font = { path = "./font" }
 errno = "0.1.6"
 parking_lot = "0.2.6"
+serde = "0.7"
+serde_yaml = "0.2"
+serde_macros = "0.7"
 
 [build-dependencies]
 gl_generator = "0.5"