Etherpad is required for Dokumaran tool and for Etherpad tag

1) Modifications are required for Etherpad server version 1.8.4, available at
	https://github.com/ether/etherpad-lite/tree/1.8.4

2) Install ep_resize plugin
	https://github.com/tiblu/ep_resize

3) Copy contents of folder /lams_tool_doku/conf/etherpad-lite/ over to /${etherpad-lite-server-folder}/
	It customises Etherpad and the plugin

4) In order to hide Etherpad index page make the following file empty: /${etherpad-lite-server-folder}/src/templates/index.html.
	Besides, one can turn on "editOnly" option in /${etherpad-lite-server-folder}/settings.json. This option's description: "Users may edit pads but not create new ones. Pad creation is only via the API. This applies both to group pads and regular pads."

5) Other plugins (optional):
	adminpads: 			Gives the ability to list and administrate all pads on admin page	0.0.12
	authornames:		Adds author names to span titles (shows on hover) in etherpad-lite	0.1.3
	authorship_toggle:	Toggle authorship colors on and off.	0.0.3
	export_authors:		Etherpad plugin to add author information to the html export	0.1.1
	stats:				See pad Stats in Etherpad	0.0.4

	
----------Same domain policy---------
Etherpad server should be installed on the same domain as LAMS server. 
Although it's possible to install it on another subdomain, it has a few limitations in terms of format of supported domain names. 
Let's say domain name is domain.tld, then:
* tld part of the domain name should consist of only one part (e.g. lams.com, lams.au)
* if we need to support more complex tld parts (e.g. lams.com.ru) it needs to be added to the hardcoded regex in Java code - https://code.lamsfoundation.org/fisheye/browse/lams/lams_tool_doku/src/java/org/lamsfoundation/lams/tool/dokumaran/service/DokumaranService.java?hb=true#to892
Currently only complex tlds of Singapore, Australia and UK are added to this regex.  
** If we will decide to start supporting all possible domain tlds in the future - we will need to download full tld list (https://publicsuffix.org/list/effective_tld_names.dat) 
and make use of it using 3rd party Java library https://github.com/whois-server-list/public-suffix-list