Attempt to fix issue #135: use Java7 nio POSIX permissions instead of forking and running chmod.

[hootsuitemike]

This is an attempt to fix issue #135 by using the Java7 POSIX permissions interface in nio.

[muuki88]

Looks correct. Do you have any benchmarks? Currently we still support java 6, @jsuereth got the last word on this.

[hootsuitemike]

I couldn't figure out how to run any of the test projects. Or even build the plugin itself to test with our project. :)

[muuki88]

set sbtVersion in Global := "0.13.1"
set scalaVersion in Global := "2.10.3"
publish-local
// scripted #if you want to run the automated tests

Then you will have a 0.6.3-<git-sha> in your local .ivy2 repository. Add this as dependency to your project and run.

[jsuereth]

I'd love to be able to merge this, but we need ot stay Java6 compliant still. Maybe we can put this in a branch. I think just merging chmod commands into as few as possible may be a temporary alternative. OR if you know of a Java7 IO backport....

[muuki88]

Sounds like a plan to gather java7 PRs in a separate branch. Still I wonder about the performance increase.

[muuki88]

I will merge this in a wip/java-7 branch.

[hootsuitemike]

This patch will not work as it stands, I still need to translate from "755" style permissions to "rwxr-xr-x" style permissions which is what the Java7 API expects. Sorry I haven't had time to update the patch.

[muuki88]

No problem, thanks for your time :)

[muuki88]

@hootsuitemike your pr is still valid :) Would you like to give him the last touch?