set version to 0.4.0

Author: gkorland

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "redisearch_api"
-version = "0.3.1"
+version = "0.4.0"
 authors = ["Gavrie Philipson <gavrie@redislabs.com>", "Guy Korland <guy.korland@redislabs.com>"]
 edition = "2018"
 description = "Rust RediSearch API binding"
@@ -29,4 +29,4 @@ cmake = "0.1"
 # Workaround to allow cfg(feature = "test") in redismodue-rs dependencies:
 # https://github.com/RedisLabsModules/redismodule-rs/pull/68
 # This requires running the tests with `--features test`
-test = ["redis-module/test"]
+test = ["redis-module/test"]