Merge pull request #3089 from jlipps/master

consolidate android setup instructions into one new file
Fix misc. doc issues
Merge pull request #3090 from imurchie/isaac-docsmisc

Fix misc. doc issues
deprecated cn doc
Merge pull request #3094 from sebv/deprecate-cn-doc

deprecated cn doc
no need to care about window_handles anymore (fix #3105)