- Fix 'README_pypi.txt'.
'apitree'

Replace 'pyramid_apitree' with 'apitree' everywhere.

Replace 'pyramid.apitree@gmail.com' with 'python.apitree@gmail.com'
everywhere.
'apitree' directory

Move 'pyramid_apitree' directory to 'apitree'.
Merge branch 'dev/namechange-apitree' into develop