`Future.task` + improved `Future.wrap`

`Future.task` lets you create temporary futures just like you would
create a closure.

`Future.wrap` now has a lot more features, like being able to directly
wrap a required module.
Bump npm version -> 1.0.2
fixed nasty bug (crash or memory leak)
Merge pull request #189 from bjouhier/nastybug

fixed nasty bug (crash or memory leak)
Support for node v0.11.13+

Node versions v0.11.0 - v0.11.12 are no longer supported. Note that
there are still some outstanding issues that will be addressed in a
later commit.
Fix isolate key detection

This broke in node 0.11.14's version of v8. A few little tweaks and we
can make v8 fill these locals up for us.
Add support for ppc & s390 archs?

@CGavrila says this works so I'll take his word for it.

Fixes #188
Fixes #190
Merge branch 'node-fibers/master' and update binaries

Update binaries and remove not supported ones.
Merge pull request #1 from Icenium/vladimirov/update-fibers-fixes

Update node-fibers to latest version