MINOR Ignore squirrel.conf configuration file.
MAJOR Implemented usage of configuration file.

Now we will search for 'squirrel.conf' in current working dir, The configuration file is fully optional, thus no problem if it does not exists or empty.

The configuration file structure is the same as in any basic .ini file.
The supported options is:
period, workDir (both in 'General' section.

Squirrel will parse configuration file and overwrite default values useng ones that have been read from file. Please pay attention that command line options have priority over defaults and values from config file.
MINOR Use .ini extension for configuration file.
DOC Added example configuration file.
DOC Added 'Configuration' section.
DOC Added warning about options priority.