Fixed error reporting in lvm.create_vg().

Resolves: rhbz#1126765
improved command generation script

write python.rst module in doc directory

fixed url to 'writing-setup-py' doc page
support lmiwbem

Support lmiwbem as a substitute of pywbem. If this module is not
available, fallback to pywbem.

Hopefully lmi.shell will provide its own abstractions for all
pywbem/lmiwbem stuff in the near future.
Merge pull request #95 from jsafrane/devel/vgcreate

Fixed error reporting in lvm.create_vg().
add realmd functions skeletons
fix silly syntax errors and omissions
First working version
sssd: fixed syntax error
Update the test to openlmi-storage-0.8.0

We have new DeviceID format for logical volumes.
Realmd: better error handling
Merge pull request #96 from jsafrane/devel/fix-lvm-names

Update the test to openlmi-storage-0.8.0
Two spaces between options and their description
fixed a typo
added help rule to make files

Also allowed to build documentation for all commands with one make
command.
fixed docstring in service script
documentation improvements

Unified names of chapters and project names accross commands.

Changes reflected in make_new.py script.
Realmd: Error handling: detect missing provider
simplify params documentation in realmd
Don't print just 'None' if no domain joined
Merge pull request #97 from tsmetana/realmd-devel

Adding the realmd script