Merge pull request #51 from RustCrypto/dbl/generic-array-v0.14

dbl: bump generic array to v0.14

Author: tarcieri

dbl/Cargo.toml

@@ -9,4 +9,4 @@ repository = "https://github.com/RustCrypto/utils"
 keywords = ["crypto", "dbl", "gf", "galois"]
 
 [dependencies]
-generic-array = "0.12"
+generic-array = "0.14"