Corrected an error where objects could not be moved when they had malformed link attributes
The server now has a debugMode. When this is turned on
 - the Webserver starts with an overview page
 - the server does not catch uncatched errors resulting in crashes when errors occur
 - the client code contains line numbers
lines and arrows now can be dashed or dotted
Merge branch 'develop' of github.com:open-steam/webarena into develop
Merge branch 'develop' into feature/API

Conflicts:
	source/Server/ObjectManager.js
	source/server.js
use variable „debug mode“ instead of „line numbering“
remove duplicated code in buildTool