Update README.md with link to PyPi

Signed-off-by: Esben Haabendal <esben@haabendal.dk>
Fixup cwd (current working directory) handling

Don't change cwd to manifest topdir, so that commands can choose to
operate from either cwd or manifest topdir.

Signed-off-by: Esben Haabendal <esben@haabendal.dk>
Enable IRC notifications (to freenode #xd-embedded)

Signed-off-by: Esben Haabendal <esben@haabendal.dk>
Add support for running unittests through setup.py

As an alternative method (to nosetests command), you can now do

    python setup.py test

Note: on most distro's, you have to run python3 (and nosetests3) instead
Signed-off-by: Esben Haabendal <esben@haabendal.dk>
Merge pull request #19 from esben/master

Fixup cwd handling and various minor things