Relicense the crate as MIT OR Apache 2.0

Closes #39

Author: weiznich

Diff for: Cargo.toml

@@ -4,10 +4,10 @@ version = "0.1.1"
 authors = ["Georg Semmler <[email protected]>"]
 edition = "2018"
 autotests = false
-license = "AGPL-3.0-or-later"
+license = "MIT OR Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/weiznich/diesel_async"
-keywords = ["orm", "database", "sql"]
+keywords = ["orm", "database", "sql", "async"]
 categories = ["database"]
 description = "An async extension for Diesel the safe, extensible ORM and Query Builder"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html