remove nulling out
Merge pull request #418 from NetLogo/issue-417

fixes #417
Merge pull request #426 from NetLogo/remove-nulling-out-in-agentsets

Remove nulling out in agentsets
add Windows RT to question about phones and tablets
document that HubNet applets are experimental and unsupported
Merge pull request #433 from NetLogo/deprecate-hubnet-applet

document that HubNet applets are experimental and unsupported
make Climate Change use new-style plotting
document applet/ProGuard situation
nightly.sh: accept both --noclean and --no-clean

forgiving of faulty fingers and brains
Merge commit 'c43bf77ff97eb8bbe7922238d0af583f1d600a47' into headless

Conflicts:
	src/main/org/nlogo/agent/ArrayAgentSet.java
	test/commands/DeadTurtles.txt
Merge remote-tracking branch 'origin/5.0.x' into headless

Conflicts:
	docs/applet.html
	docs/faq.html
	docs/hubnet.html