0.2.0

• added constants: PINBA_FLUSH_ONLY_STOPPED_TIMERS, PINBA_FLUSH_RESET_DATA, PINBA_ONLY_RUNNING_TIMERS, PINBA_AUTO_FLUSH, PINBA_ONLY_STOPPED_TIMERS
• added methods: pinba_timer_add, pinba_timers_get, pinba_schema_set, pinba_server_name_set, pinba_request_time_set, pinba_tag_set, pinba_tag_get, pinba_tag_delete, pinba_tags_get
• fixed return value for methods: pinba_script_name_set, pinba_hostname_set
• fixed: pinba_flush now stops all timers by default. It also supports 2nd argument $flags to change its behaviour
• added non-API methods: Pinba::ini_set and Pinba::ini_get
• made sure CI tests can successfully connect to the pinba servers and query them