Rename src/ to modred/

This way the package can be imported from the source directory
without first installing with setup.py
Move tests and examples inside modred/ directory
Apply Pierre Augier's cleanups

These changes bring the repository in line with Pierre Augier's
initial commit of his hg repository, in preparation for applying
his further changes.
A version running in python 3.
Cosmetic change...
Cleaning modred.__init__.py.
Change doc/ to docs/ to match Pierre's repo
Update docs to make consistent with Pierre's version
Use modred/_version.py and modify the .rst doc files.
Modifications to suppress the warnings during the building of the documentation.
Cometic change of README.rst.
Get the development status from the version string in modred._version.py
Cosmetic changes.
Small modifications in the doc.
Solve bug in tests/testvectorspace.py.
Change in docstring of modred/_version.py.
Changed help email from princeton to gmail.

Conflicts:
	README.txt
Merge pull request #1 from cwrowley/python3

Merge in Pierre Augier's changes