CMake and Ruby1.9 for Ubuntu 12.04 LTS

[Ma Xiaojun]

Though newer software is generally better and often contain important
bug fixings. Ubuntu developers (with upload right) would often ignore
or reject such SRU requests. Their excuse are always a magical word
called regression.

To be fair, it's good to carefully consider regression risks. The
problem is that the developers generally do not try to do good testing
at all. They would blindly say, hey the debdiff is quite large so it
can't be accepted.

So I guess having a PPA for your own use is the best solution. Old
release has old, known, cannot-SRU thus stuck bugs. New release fix
some old bugs and introduce new probably unknown bugs. Most new bugs
will also stuck and never get fix since SRU chance is really low. Your
own PPA can fix whatever bugs annoys you.

( The support period is mostly about security. )

You will have to spend some time with the ugly Debian packaging tools, though.