Drop support for Ubuntu Raring (13.04)

[AtnNn]

Ubuntu Raring has reached its end of life and is no longer supported by launchpad:

https://wiki.ubuntu.com/Releases

The oldest version of Ubuntu that is still supported by Canonical is Lucid (10.04 LTS). It will be supported until April 2015.

[AtnNn]

I have dropped support for raring in the jenkins release script.

[mlucy]

Does this change the set of gcc versions we have to be compatible with?

[mlucy]

(In particular, are any new C++11 features now available?)

[AtnNn]

@mlucy no, we still need to build with GCC 4.4

If it could be a time saver, we could close #1748 by dropping support for launchpad and building the lucid packages ourselves.

[mlucy]

If we could somehow make it so that we only build with versions of the STL that support rvalue references, that would be nice. (I find myself worrying right now that I'm writing code that will run super slow on 4.4, and I often choose not to use rvalue references because of that worry.) I'm not sure how worth it that is though. (@srh, do you have an opinion?)

[srh]

If we could somehow make it so that we only build with versions of the STL that support rvalue references, that would be nice. (I find myself worrying right now that I'm writing code that will run super slow on 4.4, and I often choose not to use rvalue references because of that worry.) I'm not sure how worth it that is though. (@srh, do you have an opinion?)

If you're worried about 4.4, worry about 4.8. We aren't using noexcept right now, and for any type with both a copy constructor and move constructor defined, the STL will only use move operations if the move constructor (and move assignment?) are declared with noexcept.

[mlucy]

So, just to be clear, what are we building with on what platforms? I.e. are we going to have to keep worrying about this indefinitely?

[AtnNn]

Platform	Compiler
Ubuntu Lucid (10.04)	GCC 4.4.3
Ubuntu Precise (12.04)	GCC 4.6.3
Ubuntu Quantal (12.10)	GCC 4.7.2
Ubuntu Saucy (13.10)	GCC 4.8.1
Centos 6.4	GCC 4.4.7
OS X 10.7.5	Clang 3.2

[mlucy]

Well, great. Should we go through and add noexcept to everything?