ETT-413 Remove apparently-unused template field from ht_institutions (#28)

* ETT-413 Remove apparently-unused template field from ht_institutions
- Remove `template` from `CREATE TABLE` and regenerate sample data without this field.
- I have the script to regenerate this dump as part of an "experimental" branch that is not committed (yet).
* Minor tidying:
- Bare bones .gitignore that just deals with Mac .DS_Store files
- README amended that the main purpose is development, not just testing
- Trim unused space in docker compose file

Author: moseshll

.gitignore

@@ -0,0 +1 @@
+.DS_Store

README.md

@@ -1,6 +1,6 @@
 ## db-image
 
-Docker image with MariaDB and HathiTrust database for testing.
+Docker image with MariaDB and HathiTrust database for testing and local development.
 
 Note: the `mdp-lib` credentials (at the end of `sql/000_ht_schema.sql`)
 should be used wherever possible. The `mdp-admin` account has write

docker-compose.yml

@@ -4,4 +4,4 @@ services:
   mariadb:
     build: .
     restart: always
-    
+

sql/000_ht_schema.sql

@@ -129,7 +129,6 @@ CREATE TABLE `ht_institutions` (
   `inst_id` varchar(64) PRIMARY KEY NOT NULL,
   `grin_instance` varchar(8) DEFAULT NULL,
   `name` varchar(256) DEFAULT NULL,
-  `template` varchar(256) DEFAULT NULL,
   `domain` varchar(32) DEFAULT NULL,
   `us` tinyint(1) NOT NULL DEFAULT 0,
   `mapto_inst_id` varchar(32) DEFAULT NULL,