Update dependency: error-chain (#26)

* Update dependency: error-chain

* Replace dependency: error_chain -> failure

* fixup! Replace dependency: error_chain -> failure

* Use enum for errors (in return types)

* fixup! Use enum for errors (in return types)

1 files changed, 1 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index b4beb64..d0b79b0 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,8 +13,8 @@ readme = "README.md"
 keywords = ["vobject", "icalendar", "calendar", "contacts"]
 
 [dependencies]
-error-chain = "0.11"
 chrono      = { version = "0.4", optional = true }
+failure = "0.1"
 
 [features]
 default         = []