JSON file are now easier to read by Maurizio Tomasi
common surveys list
configuration dx10
New field "survey_text" available in reader config files.

Alongside with the "survey" field (which can be either "1", "2", ..., "nominal", or "full"), the "survey_text" field contains
the same information in a different format: "survey_1", "survey_2", ..., "nominal", or "full".
Merge remote branch 'origin/master'