set log level doesn't work for standalone mode

[Gordiievskyi]

Describe the bug Log level isn't set by yaml as documentation states git docs.

First want to say thanks for doing this great project. Guys I realy need it to debug, I have a very strange errors when part of content is missing but info level do not show anything

To Reproduce Steps to reproduce the behavior:

1. Download proxy zip

2. Unpack zip and navigate inside the folder

3. Navigate to bin folder.

4. Create conf folder

5. Create bup-logging.yaml with content:

   Configutation:
   name: Default
   Appenders:
     Console:
       name: Console_Appender
       target: SYSTEM_OUT
   Loggers:
     Root:
       level: warn
       AppenderRef:
         - ref: Console_Appender
     Logger:
       - name: com.browserup.bup
         level: warn
         AppenderRef:
           - ref: Console_Appender

6. Start you proxy ./browserup-proxy-2.0.1/bin/browserup-proxy

Actual result: [INFO 2020-08-28T14:57:26,184 com.browserup.bup.proxy.Main] - default info level still applied.

Expected behavior no message appears and log level is warn

Screenshots If applicable, add screenshots to help explain your problem.

Please complete the following information:

• OS: MAC OS 10.14.6
• not applied
• Version browserup-proxy-2.0.1

Additional context Java 1.8.0_231-b11