update to rand-0.4, since dalek-0.14.4 uses it

for some reason this was causing compile errors against dalek-0.14.4 but not
0.14.0

diff --git a/Cargo.toml b/Cargo.toml
index fb3673d945fba2d62d7586e1bfe60db46986de01..6c9075a4b0e1b7d6090565979f1330a6e87ea331 100644 (file)
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ travis-ci = { repository = "warner/spake2.rs" }
 
 [dependencies]
 curve25519-dalek = "0.14"
-rand = "0.3"
+rand = "0.4"
 sha2 = "0.7"
 hkdf = "0.3"
 num-bigint = "0.1"