Merge pull request #137 from stammw/master

SMTP implementation, along with password HINT email

Cargo.toml

@@ -58,6 +58,11 @@ lazy_static = "1.1.0"
 num-traits = "0.2.5"
 num-derive = "0.2.2"
 
+lettre = "0.8.2"
+lettre_email = "0.8.2"
+native-tls = "0.1.5"
+fast_chemail = "0.9.5"
+
 [patch.crates-io]
  # Make jwt use ring 0.11, to match rocket
 jsonwebtoken = { path = "libs/jsonwebtoken" }