increase bodyparser limit to 64kb

16kb is not enough for bibtex files with more escaping.

services/web/app/coffee/infrastructure/Server.coffee

@@ -68,7 +68,7 @@ Modules.loadViewIncludes app
 
 app.use bodyParser.urlencoded({ extended: true, limit: "2mb"})
 # Make sure we can process the max doc length plus some overhead for JSON encoding
-app.use bodyParser.json({limit: Settings.max_doc_length + 16 * 1024}) # 16kb overhead
+app.use bodyParser.json({limit: Settings.max_doc_length + 64 * 1024}) # 64kb overhead
 app.use multer(dest: Settings.path.uploadFolder)
 app.use methodOverride()