Improve documentation about all configuration parameters

[santo-it]

http://orientdb.com/docs/master/Configuration.html#parameters

May take some time, but as a possible mid-term objective:

For any parameter, it is important to have a set of properties, e.g.:

• when it was added
• default value
• if can be set at runtime
• when it was deprecated

Ideally there is a table from where all these info can be quickly read, and where each parameter is clickable (--> paragraph which includes the full description of the parameter)

Thanks,