Add 'trema port_down' command. See features/trema_commands/port_down.feature for its usage and details (refs #253)
Version bump to 0.3.7
Merge branch 'release0.3.7' into develop
Make gem install work under non-default ruby path

Fixes #254

Before this commit build.rb expects 'ruby' as the interpreter path.
It leads to gem installation failure in environments where ruby 1.8
is provided as a different path such as 'ruby1.8'.
Version bump to 0.3.8
Merge branch 'release0.3.8' into develop
Add 'trema1' postfix to vendor/vendor/oflops-0.03 and its tar.gz to clearify that it is modified for trema (refs #255)
Make openvswitch 1.2.2 search librt for POSIX timer functions

This fix updates Open vSwitch tarball distributed with Trema.

Fixes #255
Rename .patch -> .diff (refs #256)
Merge pull request #256 from amotoki/ovs-librt-search

Make openvswitch 1.2.2 search librt for POSIX timer functions
Add 'trema port_up' command.

See features/trema_commands/port_up.feature for its usage and
details (refs #253).
Merge branch 'develop' of https://github.com/trema/trema into develop
Version bump to 0.3.9
Merge branch 'release0.3.9' into develop
Updated overall header comments.

* Removed "Author:"" tag. Let's use 'git blame' for that purpose.
* Updated copyright 2012 -> 2013.
Add required_ruby_version to gemspec

This specifies that Trema is compatible only with Ruby 1.8.7. This way
nobody will get confused if they're using 1.7 or 1.9 family.
Version bump to 0.3.10
Merge branch 'release0.3.10' into develop
Revert "Work around for fd starvation issue found during #7."

This reverts commit d1ed809336bf61b18d2a284289ed1e981a38934b.
Workaround for fd starvation issue found during #7.
* Fix using the same approach submitted to cucumber/aruba.