add passing ExpressionParser test showing existence of issue #417

I'll fix the bug and update the test case in a subsequent commit
fix ExpressionParser bug -- fixes #417
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
upgrade to Scala 2.10.3-RC2
nightly.sh: accept both --noclean and --no-clean

forgiving of faulty fingers and brains
oops fix mistake in HubNet doc
3D dictionary fix: ox/y/zcor have double underscores
upgrade to Scala 2.10.3-RC3
Merge remote-tracking branch 'origin/master' into scala-2.10.3
Updating docs regarding histogram auto scaling
upgrade to Scala 2.10.3 final
Merge pull request #444 from NetLogo/scala-2.10.3

upgrade to Scala 2.10.3
Merge commit '122a67b4076eda198c88ed5a304f6e162d689abd'

Conflicts:
	headless/src/test/org/nlogo/parse/ExpressionParserTests.scala