Adds support for PostgreSQL which resolves #87 and is mentioned in #246.

This includes migrations as well as Dockerfile's for amd64.

The biggest change is that replace_into isn't supported by Diesel for the
PostgreSQL backend, instead requiring the use of on_conflict. This
unfortunately requires a branch for save() on all of the models currently
using replace_into.

src/db/schemas/postgresql/schema.rs

@@ -0,0 +1,172 @@
+table! {
+    attachments (id) {
+        id -> Text,
+        cipher_uuid -> Text,
+        file_name -> Text,
+        file_size -> Integer,
+        akey -> Nullable<Text>,
+    }
+}
+
+table! {
+    ciphers (uuid) {
+        uuid -> Text,
+        created_at -> Timestamp,
+        updated_at -> Timestamp,
+        user_uuid -> Nullable<Text>,
+        organization_uuid -> Nullable<Text>,
+        atype -> Integer,
+        name -> Text,
+        notes -> Nullable<Text>,
+        fields -> Nullable<Text>,
+        data -> Text,
+        favorite -> Bool,
+        password_history -> Nullable<Text>,
+    }
+}
+
+table! {
+    ciphers_collections (cipher_uuid, collection_uuid) {
+        cipher_uuid -> Text,
+        collection_uuid -> Text,
+    }
+}
+
+table! {
+    collections (uuid) {
+        uuid -> Text,
+        org_uuid -> Text,
+        name -> Text,
+    }
+}
+
+table! {
+    devices (uuid) {
+        uuid -> Text,
+        created_at -> Timestamp,
+        updated_at -> Timestamp,
+        user_uuid -> Text,
+        name -> Text,
+        atype -> Integer,
+        push_token -> Nullable<Text>,
+        refresh_token -> Text,
+        twofactor_remember -> Nullable<Text>,
+    }
+}
+
+table! {
+    folders (uuid) {
+        uuid -> Text,
+        created_at -> Timestamp,
+        updated_at -> Timestamp,
+        user_uuid -> Text,
+        name -> Text,
+    }
+}
+
+table! {
+    folders_ciphers (cipher_uuid, folder_uuid) {
+        cipher_uuid -> Text,
+        folder_uuid -> Text,
+    }
+}
+
+table! {
+    invitations (email) {
+        email -> Text,
+    }
+}
+
+table! {
+    organizations (uuid) {
+        uuid -> Text,
+        name -> Text,
+        billing_email -> Text,
+    }
+}
+
+table! {
+    twofactor (uuid) {
+        uuid -> Text,
+        user_uuid -> Text,
+        atype -> Integer,
+        enabled -> Bool,
+        data -> Text,
+    }
+}
+
+table! {
+    users (uuid) {
+        uuid -> Text,
+        created_at -> Timestamp,
+        updated_at -> Timestamp,
+        email -> Text,
+        name -> Text,
+        password_hash -> Binary,
+        salt -> Binary,
+        password_iterations -> Integer,
+        password_hint -> Nullable<Text>,
+        akey -> Text,
+        private_key -> Nullable<Text>,
+        public_key -> Nullable<Text>,
+        totp_secret -> Nullable<Text>,
+        totp_recover -> Nullable<Text>,
+        security_stamp -> Text,
+        equivalent_domains -> Text,
+        excluded_globals -> Text,
+        client_kdf_type -> Integer,
+        client_kdf_iter -> Integer,
+    }
+}
+
+table! {
+    users_collections (user_uuid, collection_uuid) {
+        user_uuid -> Text,
+        collection_uuid -> Text,
+        read_only -> Bool,
+    }
+}
+
+table! {
+    users_organizations (uuid) {
+        uuid -> Text,
+        user_uuid -> Text,
+        org_uuid -> Text,
+        access_all -> Bool,
+        akey -> Text,
+        status -> Integer,
+        atype -> Integer,
+    }
+}
+
+joinable!(attachments -> ciphers (cipher_uuid));
+joinable!(ciphers -> organizations (organization_uuid));
+joinable!(ciphers -> users (user_uuid));
+joinable!(ciphers_collections -> ciphers (cipher_uuid));
+joinable!(ciphers_collections -> collections (collection_uuid));
+joinable!(collections -> organizations (org_uuid));
+joinable!(devices -> users (user_uuid));
+joinable!(folders -> users (user_uuid));
+joinable!(folders_ciphers -> ciphers (cipher_uuid));
+joinable!(folders_ciphers -> folders (folder_uuid));
+joinable!(twofactor -> users (user_uuid));
+joinable!(users_collections -> collections (collection_uuid));
+joinable!(users_collections -> users (user_uuid));
+joinable!(users_organizations -> organizations (org_uuid));
+joinable!(users_organizations -> users (user_uuid));
+
+allow_tables_to_appear_in_same_query!(
+    attachments,
+    ciphers,
+    ciphers_collections,
+    collections,
+    devices,
+    folders,
+    folders_ciphers,
+    invitations,
+    organizations,
+    twofactor,
+    users,
+    users_collections,
+    users_organizations,
+);