Move config so serepate module.
Use Proplist in fawor of dict.
All possible default values in `mas_config` module.
Stop using file for configuation.
Remove unused callback.
Default values from options specification.
Remove unused configuration files.
Add `getopt` as project dependency.
Move model form argument to options.
Remove unused funcitons.
Cleanup after Elvis pointers.
Move `agent_env` from argument to options.
Default options description.
Print config in one line.
Merge pull request #5 from ParaPhraseAGH/config_files

Config files
added the exometer dependency
added skip_deps==true to the Makefile
a very basic version of the new logger
a very basic version of the new logger
fix specs