INDY-484: Added level arg to filter_log script (#348)
INDY-484: Added level arg to filter_log script (#348)

* INDY-484: Cleaned up INFO log level

* INDY-484: Cleaned up INFO log level

* INDY-484: Reverted levels of 2 log messages

Reverted the levels of the log messages about listening for other nodes when ZMQ/RAET stack is starting.

* INDY-484: Processed code review findings

* INDY-484: Reverted formatting

* INDY-484: Added prefixes to important log messages

* INDY-484: Corrected tests

* INDY-484: Corrected one log message prefix

- Corrected one log message prefix.
- Corrected one log message level.

* INDY-484: Added prefixes to some log messages

* INDY-484: Changed level for one log message

* INDY-484: Corrected tests

* INDY-484: Added level arg to filter_log script

- Added an argument for filtering by a log level to the script for filtering logs.
- Made the arguments of the script for filtering logs named because the script have multiple optional arguments now.

evernym/zeno,evernym/plenum