[0.9] [Suggestion] Advanced research names

First of all I would like to thank you for the improvements you made to research. It looks much better than in the last builds.

There is still one thing I dislike very much. The advanced research in say farming or mining that are called "refined xxx". This names are so science fiction! Please change this to "real" things.

 For example for the farming stream: irrigation, plow, fertilizer,  three-field rotation, agricultural science...