Checking in local changes

Switched to qooxdoo-compiler

Doc fix

Bug fix

moved pdf-related services into own file

Added extract chapters feature

Updated readme&config.json.dist, adapted to run in c9.io

Update package.json

Update readme

Added 'clear cache' button

Server checks for development mode

Increased log level of file attachment transfer success message

Fixed bug in notes import

Removed "inpress" item type from zotero dictionary

Various changes