debug for ASQ server deployment
Various fixes
  - MODIFY: avoid compression of dust templates
  - MODIFY: make salt factor a constant
  - ADD: script calls for user
ADD code input assessment type

 - MODIFY: reenable old stats and modify them for conditional loading
update cheerio
fixed browserify
update browserify dependency
organise fixtures

 -MODIFY: move microformat fictures to seperate folder
 -ADD: mongoose-fixtures to easily load fixtures
ADD slideshow remove functionality

 - ADD: tests for slideshow
 - ADD: restErrorHandler
 - MODIFY: delete logic
MODIFY: wording for slideshows
Prepare session tests
MODIFY: error handling

 - ADD: error middleware
 - ADD: simple-errors package
 - ADD: error types
 - REMOVE: express default error Handler
 - MODIFY: 500 page
 - MODIFY: delete presentation route
REMOVE: unused console.log messages
Merge branch 'new-model' of github.com:ASQ-USI/ASQ into new-model

Conflicts:
	app.js
	client/asq-previewer/asq.js
	dist/asq-previewer/js/asq.js
	package.json
	test/upload.test.js