- Allows the field that gets stored as the "External Authentication ID"
to be configurable. Defined as LDAP_ID_ATTRIBUTE=uid in .env.
- Added test to cover usage.
- Also now auto-lowercases when searching for attributes in LDAP
response since PHP always provides them as lower case.
Closes#592.
- Previous config did not use multiple servers in any way.
- Cluster will now be created automatically if multiple servers given.
- Removed REDIS_CLUSTER option.
Closes#1283