added initial work for recoding example
added hello kodo example
removed empty.cpp example from tutorial wscript
use rtd theme if available
made a few changes.
addressed @mvp's comments
merge
fix warning
removed word duplications
improved writing
Merge pull request #101 from steinwurf/add-empty-example

Add empty example
removed word duplications
merge
Merge pull request #98 from steinwurf/add-recoding-tutorial

added initial work for recoding example
updated how to include kodo
simplified command
added warning
minor fixes
Additions in including_kodo_in_your_application.rst
Update include paths for https default protocol