ruby: import from oldpackages and update to 2.1.2

This commit imports the old Makefile from old openwrt feeds.
Also, the package was updated to the latest version.

The new version was tested in a VM with no aparent problem.
No patches are needed.

I added myself as maintainer. If possible, I would like to gain
commit access.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Import net/unbound package from Subversion

This is an import of the net/unbound package from Subversion
revision 40658 (May 2, 2014). The only change is the addition of
PKG_LICENSE, PKG_LICENSE_FILE and PKG_MAINTAINER to Makefile.
Unbound 1.4.22 is the current upstream release.

Signed-off-by: Michael Hanselmann <public@hansmi.ch>
Merge branch 'master' into trunk/luizluca
Fix a typo in CONTRIBUTING.md text

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Merge pull request #218 from luizluca/fix-Contributing

Fix a typo in CONTRIBUTING.md text
Merge pull request #216 from hansmi/master

Import net/unbound package from Subversion
Merge pull request #217 from luizluca/trunk/luizluca

Migrate ruby from oldpackages to github and update