Make proc macros ver explicit again

Author: andrew

crates/structre/Cargo.toml

@@ -14,4 +14,4 @@ unicode = ["structre_proc_macros/unicode", "regex/unicode"]
 [dependencies]
 regex = { version = "1", default-features = false, features = ["std"] }
 static_init = "1"
-structre_proc_macros = { path = "../structre_proc_macros" }
+structre_proc_macros = { path = "../structre_proc_macros", version = "=0.1.0" }