Proposal for installation cleanup

[petrrr]

Here are some proposals for cleanup:

• Currently PyProgs installs as waveloc and examples as waveloc_examples. See also the setup.py script (https://github.com/amaggi/waveloc/blob/master/setup.py#L12). This is probably unnecessarily confusing. So I'd propose just to rename these directories in the repo.
• Also installing the examples as module does not really make sense, these are all callable scripts which should not be imported as modules.
• Probably, deprecated and README could be moved from PyProgs.
• I am wondering if the tests (currently in PyProgs) should not be put into a separate directory.
• Module naming with mixed case is quite unusual, and I believe it is not PEP8 complaint (https://www.python.org/dev/peps/pep-0008#package-and-module-names). Consider renaming some of them.
• What about the run_* scripts in scripts? Should they be considered examples?
• lib, nll, test_data are probably related to tests or examples as well

These are just some observation. So feel free to just ignore them.

[amaggi]

Have started propagating these fixes in the u-grid branch, notably :

• renamed the waveloc and waveloc-examples directories
• moved the tests to a separate directory