MariaDB port

[HannaLindgren]

• master (sqlite) branch ported for mysql: mariadb
• master (sqlite) branch with interface structure: sqlite_if
• pre-check for potential conflicts (cf execSchema)
• new branch from master: dbif_merge_test2
  • merge in branches mariadb and sqlite_if
  • resolve conflicts
  • run all tests (for both db types)
• specify db type
  • when starting pronlex server
  • when running unit tests (?)
  • command line utilities
• setup scripts
  • setup.sh
  • start_server.sh
  • import.sh
  • import_fromlexfiles.sh
  • update README.md in root folder to match new script usage/options
• create dump files (Create MariaDB SQL dump files #42)
• merge to master
• rename default databases in pronlex and update wikispeech_mockup to reflect this (wikispeech_testdb/speechoid_lexserver_demo => wikispeech_lexserver_demo etc)
• calling mysql client with data source name (DSN) (Calling mysql client with data source name (DSN) #47)
• tests
  • automated tests (Run all automated tests after MariaDB port is completed #45)
  • manual tests
• existing docs
• new docs for mariadb as needed
  • configure mariadb user(s)
  • call setup/import scripts with create database privileges
  • $ (sudo) mysql -u root < scripts/mariadb_setup.sql
  • supported mariadb version(s)
• utility scripts for adding/deleting mariadb database (create database + grant all .... it's hard to remember the details) - in scripts/setup.sh