Put link to admin docs in the README
Mention the web admin interface in dev docs
Revert "Cache and reuse the schema objects"

This reverts commit 7dda4e1bfd5c4ab0c096cfbff4cd4836bef44c3a.
Warn, don't die if multiple terms match a name
Make temporary ont. index, then copy on success
Clean DB file name
Add missing cvterm_id indexes to the track DB
Revert "Revert "Cache and reuse the schema objects""

This reverts commit cf139f73dd1fb8433bfd5f2eb4e54d38b940dc58.
Don't start a sub-transaction in set_state()
Don't start a transaction in set_metadata()
Don't use a transaction in make_base_track_db()
Don't start a transaction in OntologyLoad::load()
Add DB->cached_connect() and call where possible

This prevents locked database errors from SQLite in some cases because all
accesses go through one connection.
Remove unused code
Do more caching and less querying in ontology load
Add connect_string_of_schema()
Add DBUtil::copy_sqlite_database()
Fix test
For speed, load ontologies in a temp DB, then copy
Merge branch 'branch/fast-ontology-update'