Fix exporting of LANG setting for Unix platforms.

When exporting a variable you should use the name, not the content.
Remove Gemfile.lock and make sure it keeps ignored.

This file should not be added to repositories for libraries, only for
deployed applications.
Add license to gemspec
without a timeout set read from the pipe while we wait so that Process.waitpid doe not hang after the pipe buffer gets filled
Merge pull request #12 from Flameeyes/master

Fixes for 0.2.2 to work on Unix
Merge pull request #15 from jgeiger/patch-1

Add license to gemspec
Merge branch 'master' of github.com:brettg/subexec into brettg
Version bump; 0.2.3
Merge branch 'master' of git://github.com/nulayer/subexec

Conflicts:
	lib/subexec.rb
	spec/subexec_spec.rb