Details:
* move main files into the top of the tree;
* move examples into examples folder;
* support new structure in run_test.sh and setup.py.
Result:
* update gitignore files to support run_test.sh;
* compatibility with openstack-gates;
* compatibility with standard pip installation via git+https.
Closes-Bug: #1479785
Change-Id: I93b51b0797eaf619614cb2a493a2a68d0f547751