FIX: Coding interview fragments (#106)

Let's celebrate the 600th commit in Cassandre GitHub repository !

This fixes issues resulting from layout removal (for interview transcripts) operated by commit b156198

* First paragraph of an interview can be coded as a fragment (#116).
* Interview memos exclude paragraph indents. This pursues the refactoring of interview transcripts (#104).
* Memo content excludes tabular (\t).

app/lib/shared.js

@@ -291,7 +291,7 @@ var shared = {
             $('#existing_memo').modal('show');\
           }\
         } else {\
-          if (anchor > 1) ground = [{'_id': '{{_id}}', 'preview':[{'text': highlight, 'anchor': anchor}]}];\
+          if (anchor > 0) ground = [{'_id': '{{_id}}', 'preview':[{'text': highlight, 'anchor': anchor}]}];\
           var data = {\
             groundings: ground,\
             history: [{\

app/updates/update_memo_content.js

@@ -5,6 +5,8 @@ function (doc, req) {
     "user": req.userCtx.name,
     "date": new Date().toJSON()
   });
+  doc.body = doc.body.replace(/\t/g, " ");
+  if (doc.type == "interview") doc.body = doc.body.replace(/  +/g, " ").replace(/\n \n /g, "\n \n");
   delete doc.editing;
   return [doc, 'Memo updated']
 }