daily builds for Ubuntu

[Dirk Hohndel]

So this is an experiment... but maybe it's useful for some?

I have created a current daily build for Trusty and Utopic (with lots, and
lots, and LOTS of help from Miika). I'd appreciate if people could test
this as it is quite different from the official builds - it statically
links against the Subsurface-testing branch of libdivecomputer and a
compatible version of libgit2 (btw - tip of master of libgit2 is already
incompatible again with Subsurface... what is WRONG with these people?).

If this is useful for people I'll experiment with including our own marble
library in the package as well and more importantly with switching the
whole thing to Qt5 (marble-dev on Ubuntu is linked against Qt4). One thing
that's ironic about this is that I don't actually have a client system
running Ubuntu, so I can't test what I'm uploading :-)

To quote the launchpad page:

You can update your system with unsupported packages from this untrusted
PPA by adding ppa:subsurface/subsurface-daily to your system's Software
Sources.

https://launchpad.net/~subsurface/+archive/ubuntu/subsurface-daily

/D