Makefile checks that you have PyDAS and PyDQED on your Python path
Change URLs of PyDAS and PyDQED to GreenGroup in installation instructions.

Hopefully Josh will alert us to any improvements he makes, now that he has left.
I also switched to https instead of git, so that you don't need a github account
and login etc.

I also tweak the linux installation instructions.
Just formatting, really.
Tweaking code to find default location of the database

It turns out that this bit of code was correct, but hopefully now it's clearer.

It's still pretty confusing where this is set, and in what priority.
(eg. the .rmgrc config file). I'm not sure why the prior one seems to work in other places
Add work_in_progress decorator for currently failing Unit Tests

This is a proof (test) of concept. If it works, then we should add this
decorator to all the unit tests that we currently EXPECT to fail.
That way, the Travis-CI build test will pass - the failing tests will
just be skipped if they fail (still with an error message).

We shouldn't forget to go and fix the tests though!
Merge pull request #199 from rwest/fixtests

Progress towards fixing unit tests.  

There are some fixes to the makefile, instructions, and default database location.
Also, a work_in_progress decorator, that we should use to annotate any Unit Tests that we currently expect to fail. You just add @work_in_progress to the line before the unit test definition. 
If someone could do that for all the currently failing tests, as a half-way house to actually making them work, we will at least be able to detect changes and extra errors.